Update README.md

LICENSE

@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.  We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors.  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+  To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights.  Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received.  You must make sure that they, too, receive
+or can get the source code.  And you must show them these terms so they
+know their rights.
+
+  Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+  For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software.  For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+  Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the manufacturer
+can do so.  This is fundamentally incompatible with the aim of
+protecting users' freedom to change the software.  The systematic
+pattern of such abuse occurs in the area of products for individuals to
+use, which is precisely where it is most unacceptable.  Therefore, we
+have designed this version of the GPL to prohibit the practice for those
+products.  If such problems arise substantially in other domains, we
+stand ready to extend this provision to those domains in future versions
+of the GPL, as needed to protect the freedom of users.
+
+  Finally, every program is threatened constantly by software patents.
+States should not allow patents to restrict development and use of
+software on general-purpose computers, but in those that do, we wish to
+avoid the special danger that patents applied to a free program could
+make it effectively proprietary.  To prevent this, the GPL assures that
+patents cannot be used to render the program non-free.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                       TERMS AND CONDITIONS
+
+  0. Definitions.
+
+  "This License" refers to version 3 of the GNU General Public License.
+
+  "Copyright" also means copyright-like laws that apply to other kinds of
+works, such as semiconductor masks.
+
+  "The Program" refers to any copyrightable work licensed under this
+License.  Each licensee is addressed as "you".  "Licensees" and
+"recipients" may be individuals or organizations.
+
+  To "modify" a work means to copy from or adapt all or part of the work
+in a fashion requiring copyright permission, other than the making of an
+exact copy.  The resulting work is called a "modified version" of the
+earlier work or a work "based on" the earlier work.
+
+  A "covered work" means either the unmodified Program or a work based
+on the Program.
+
+  To "propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
+infringement under applicable copyright law, except executing it on a
+computer or modifying a private copy.  Propagation includes copying,
+distribution (with or without modification), making available to the
+public, and in some countries other activities as well.
+
+  To "convey" a work means any kind of propagation that enables other
+parties to make or receive copies.  Mere interaction with a user through
+a computer network, with no transfer of a copy, is not conveying.
+
+  An interactive user interface displays "Appropriate Legal Notices"
+to the extent that it includes a convenient and prominently visible
+feature that (1) displays an appropriate copyright notice, and (2)
+tells the user that there is no warranty for the work (except to the
+extent that warranties are provided), that licensees may convey the
+work under this License, and how to view a copy of this License.  If
+the interface presents a list of user commands or options, such as a
+menu, a prominent item in the list meets this criterion.
+
+  1. Source Code.
+
+  The "source code" for a work means the preferred form of the work
+for making modifications to it.  "Object code" means any non-source
+form of a work.
+
+  A "Standard Interface" means an interface that either is an official
+standard defined by a recognized standards body, or, in the case of
+interfaces specified for a particular programming language, one that
+is widely used among developers working in that language.
+
+  The "System Libraries" of an executable work include anything, other
+than the work as a whole, that (a) is included in the normal form of
+packaging a Major Component, but which is not part of that Major
+Component, and (b) serves only to enable use of the work with that
+Major Component, or to implement a Standard Interface for which an
+implementation is available to the public in source code form.  A
+"Major Component", in this context, means a major essential component
+(kernel, window system, and so on) of the specific operating system
+(if any) on which the executable work runs, or a compiler used to
+produce the work, or an object code interpreter used to run it.
+
+  The "Corresponding Source" for a work in object code form means all
+the source code needed to generate, install, and (for an executable
+work) run the object code and to modify the work, including scripts to
+control those activities.  However, it does not include the work's
+System Libraries, or general-purpose tools or generally available free
+programs which are used unmodified in performing those activities but
+which are not part of the work.  For example, Corresponding Source
+includes interface definition files associated with source files for
+the work, and the source code for shared libraries and dynamically
+linked subprograms that the work is specifically designed to require,
+such as by intimate data communication or control flow between those
+subprograms and other parts of the work.
+
+  The Corresponding Source need not include anything that users
+can regenerate automatically from other parts of the Corresponding
+Source.
+
+  The Corresponding Source for a work in source code form is that
+same work.
+
+  2. Basic Permissions.
+
+  All rights granted under this License are granted for the term of
+copyright on the Program, and are irrevocable provided the stated
+conditions are met.  This License explicitly affirms your unlimited
+permission to run the unmodified Program.  The output from running a
+covered work is covered by this License only if the output, given its
+content, constitutes a covered work.  This License acknowledges your
+rights of fair use or other equivalent, as provided by copyright law.
+
+  You may make, run and propagate covered works that you do not
+convey, without conditions so long as your license otherwise remains
+in force.  You may convey covered works to others for the sole purpose
+of having them make modifications exclusively for you, or provide you
+with facilities for running those works, provided that you comply with
+the terms of this License in conveying all material for which you do
+not control copyright.  Those thus making or running the covered works
+for you must do so exclusively on your behalf, under your direction
+and control, on terms that prohibit them from making any copies of
+your copyrighted material outside their relationship with you.
+
+  Conveying under any other circumstances is permitted solely under
+the conditions stated below.  Sublicensing is not allowed; section 10
+makes it unnecessary.
+
+  3. Protecting Users' Legal Rights From Anti-Circumvention Law.
+
+  No covered work shall be deemed part of an effective technological
+measure under any applicable law fulfilling obligations under article
+11 of the WIPO copyright treaty adopted on 20 December 1996, or
+similar laws prohibiting or restricting circumvention of such
+measures.
+
+  When you convey a covered work, you waive any legal power to forbid
+circumvention of technological measures to the extent such circumvention
+is effected by exercising rights under this License with respect to
+the covered work, and you disclaim any intention to limit operation or
+modification of the work as a means of enforcing, against the work's
+users, your or third parties' legal rights to forbid circumvention of
+technological measures.
+
+  4. Conveying Verbatim Copies.
+
+  You may convey verbatim copies of the Program's source code as you
+receive it, in any medium, provided that you conspicuously and
+appropriately publish on each copy an appropriate copyright notice;
+keep intact all notices stating that this License and any
+non-permissive terms added in accord with section 7 apply to the code;
+keep intact all notices of the absence of any warranty; and give all
+recipients a copy of this License along with the Program.
+
+  You may charge any price or no price for each copy that you convey,
+and you may offer support or warranty protection for a fee.
+
+  5. Conveying Modified Source Versions.
+
+  You may convey a work based on the Program, or the modifications to
+produce it from the Program, in the form of source code under the
+terms of section 4, provided that you also meet all of these conditions:
+
+    a) The work must carry prominent notices stating that you modified
+    it, and giving a relevant date.
+
+    b) The work must carry prominent notices stating that it is
+    released under this License and any conditions added under section
+    7.  This requirement modifies the requirement in section 4 to
+    "keep intact all notices".
+
+    c) You must license the entire work, as a whole, under this
+    License to anyone who comes into possession of a copy.  This
+    License will therefore apply, along with any applicable section 7
+    additional terms, to the whole of the work, and all its parts,
+    regardless of how they are packaged.  This License gives no
+    permission to license the work in any other way, but it does not
+    invalidate such permission if you have separately received it.
+
+    d) If the work has interactive user interfaces, each must display
+    Appropriate Legal Notices; however, if the Program has interactive
+    interfaces that do not display Appropriate Legal Notices, your
+    work need not make them do so.
+
+  A compilation of a covered work with other separate and independent
+works, which are not by their nature extensions of the covered work,
+and which are not combined with it such as to form a larger program,
+in or on a volume of a storage or distribution medium, is called an
+"aggregate" if the compilation and its resulting copyright are not
+used to limit the access or legal rights of the compilation's users
+beyond what the individual works permit.  Inclusion of a covered work
+in an aggregate does not cause this License to apply to the other
+parts of the aggregate.
+
+  6. Conveying Non-Source Forms.
+
+  You may convey a covered work in object code form under the terms
+of sections 4 and 5, provided that you also convey the
+machine-readable Corresponding Source under the terms of this License,
+in one of these ways:
+
+    a) Convey the object code in, or embodied in, a physical product
+    (including a physical distribution medium), accompanied by the
+    Corresponding Source fixed on a durable physical medium
+    customarily used for software interchange.
+
+    b) Convey the object code in, or embodied in, a physical product
+    (including a physical distribution medium), accompanied by a
+    written offer, valid for at least three years and valid for as
+    long as you offer spare parts or customer support for that product
+    model, to give anyone who possesses the object code either (1) a
+    copy of the Corresponding Source for all the software in the
+    product that is covered by this License, on a durable physical
+    medium customarily used for software interchange, for a price no
+    more than your reasonable cost of physically performing this
+    conveying of source, or (2) access to copy the
+    Corresponding Source from a network server at no charge.
+
+    c) Convey individual copies of the object code with a copy of the
+    written offer to provide the Corresponding Source.  This
+    alternative is allowed only occasionally and noncommercially, and
+    only if you received the object code with such an offer, in accord
+    with subsection 6b.
+
+    d) Convey the object code by offering access from a designated
+    place (gratis or for a charge), and offer equivalent access to the
+    Corresponding Source in the same way through the same place at no
+    further charge.  You need not require recipients to copy the
+    Corresponding Source along with the object code.  If the place to
+    copy the object code is a network server, the Corresponding Source
+    may be on a different server (operated by you or a third party)
+    that supports equivalent copying facilities, provided you maintain
+    clear directions next to the object code saying where to find the
+    Corresponding Source.  Regardless of what server hosts the
+    Corresponding Source, you remain obligated to ensure that it is
+    available for as long as needed to satisfy these requirements.
+
+    e) Convey the object code using peer-to-peer transmission, provided
+    you inform other peers where the object code and Corresponding
+    Source of the work are being offered to the general public at no
+    charge under subsection 6d.
+
+  A separable portion of the object code, whose source code is excluded
+from the Corresponding Source as a System Library, need not be
+included in conveying the object code work.
+
+  A "User Product" is either (1) a "consumer product", which means any
+tangible personal property which is normally used for personal, family,
+or household purposes, or (2) anything designed or sold for incorporation
+into a dwelling.  In determining whether a product is a consumer product,
+doubtful cases shall be resolved in favor of coverage.  For a particular
+product received by a particular user, "normally used" refers to a
+typical or common use of that class of product, regardless of the status
+of the particular user or of the way in which the particular user
+actually uses, or expects or is expected to use, the product.  A product
+is a consumer product regardless of whether the product has substantial
+commercial, industrial or non-consumer uses, unless such uses represent
+the only significant mode of use of the product.
+
+  "Installation Information" for a User Product means any methods,
+procedures, authorization keys, or other information required to install
+and execute modified versions of a covered work in that User Product from
+a modified version of its Corresponding Source.  The information must
+suffice to ensure that the continued functioning of the modified object
+code is in no case prevented or interfered with solely because
+modification has been made.
+
+  If you convey an object code work under this section in, or with, or
+specifically for use in, a User Product, and the conveying occurs as
+part of a transaction in which the right of possession and use of the
+User Product is transferred to the recipient in perpetuity or for a
+fixed term (regardless of how the transaction is characterized), the
+Corresponding Source conveyed under this section must be accompanied
+by the Installation Information.  But this requirement does not apply
+if neither you nor any third party retains the ability to install
+modified object code on the User Product (for example, the work has
+been installed in ROM).
+
+  The requirement to provide Installation Information does not include a
+requirement to continue to provide support service, warranty, or updates
+for a work that has been modified or installed by the recipient, or for
+the User Product in which it has been modified or installed.  Access to a
+network may be denied when the modification itself materially and
+adversely affects the operation of the network or violates the rules and
+protocols for communication across the network.
+
+  Corresponding Source conveyed, and Installation Information provided,
+in accord with this section must be in a format that is publicly
+documented (and with an implementation available to the public in
+source code form), and must require no special password or key for
+unpacking, reading or copying.
+
+  7. Additional Terms.
+
+  "Additional permissions" are terms that supplement the terms of this
+License by making exceptions from one or more of its conditions.
+Additional permissions that are applicable to the entire Program shall
+be treated as though they were included in this License, to the extent
+that they are valid under applicable law.  If additional permissions
+apply only to part of the Program, that part may be used separately
+under those permissions, but the entire Program remains governed by
+this License without regard to the additional permissions.
+
+  When you convey a copy of a covered work, you may at your option
+remove any additional permissions from that copy, or from any part of
+it.  (Additional permissions may be written to require their own
+removal in certain cases when you modify the work.)  You may place
+additional permissions on material, added by you to a covered work,
+for which you have or can give appropriate copyright permission.
+
+  Notwithstanding any other provision of this License, for material you
+add to a covered work, you may (if authorized by the copyright holders of
+that material) supplement the terms of this License with terms:
+
+    a) Disclaiming warranty or limiting liability differently from the
+    terms of sections 15 and 16 of this License; or
+
+    b) Requiring preservation of specified reasonable legal notices or
+    author attributions in that material or in the Appropriate Legal
+    Notices displayed by works containing it; or
+
+    c) Prohibiting misrepresentation of the origin of that material, or
+    requiring that modified versions of such material be marked in
+    reasonable ways as different from the original version; or
+
+    d) Limiting the use for publicity purposes of names of licensors or
+    authors of the material; or
+
+    e) Declining to grant rights under trademark law for use of some
+    trade names, trademarks, or service marks; or
+
+    f) Requiring indemnification of licensors and authors of that
+    material by anyone who conveys the material (or modified versions of
+    it) with contractual assumptions of liability to the recipient, for
+    any liability that these contractual assumptions directly impose on
+    those licensors and authors.
+
+  All other non-permissive additional terms are considered "further
+restrictions" within the meaning of section 10.  If the Program as you
+received it, or any part of it, contains a notice stating that it is
+governed by this License along with a term that is a further
+restriction, you may remove that term.  If a license document contains
+a further restriction but permits relicensing or conveying under this
+License, you may add to a covered work material governed by the terms
+of that license document, provided that the further restriction does
+not survive such relicensing or conveying.
+
+  If you add terms to a covered work in accord with this section, you
+must place, in the relevant source files, a statement of the
+additional terms that apply to those files, or a notice indicating
+where to find the applicable terms.
+
+  Additional terms, permissive or non-permissive, may be stated in the
+form of a separately written license, or stated as exceptions;
+the above requirements apply either way.
+
+  8. Termination.
+
+  You may not propagate or modify a covered work except as expressly
+provided under this License.  Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
+
+  However, if you cease all violation of this License, then your
+license from a particular copyright holder is reinstated (a)
+provisionally, unless and until the copyright holder explicitly and
+finally terminates your license, and (b) permanently, if the copyright
+holder fails to notify you of the violation by some reasonable means
+prior to 60 days after the cessation.
+
+  Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+  Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License.  If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+  9. Acceptance Not Required for Having Copies.
+
+  You are not required to accept this License in order to receive or
+run a copy of the Program.  Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance.  However,
+nothing other than this License grants you permission to propagate or
+modify any covered work.  These actions infringe copyright if you do
+not accept this License.  Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+  10. Automatic Licensing of Downstream Recipients.
+
+  Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License.  You are not responsible
+for enforcing compliance by third parties with this License.
+
+  An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations.  If propagation of a covered
+work results from an entity transaction, each party to that
+transaction who receives a copy of the work also receives whatever
+licenses to the work the party's predecessor in interest had or could
+give under the previous paragraph, plus a right to possession of the
+Corresponding Source of the work from the predecessor in interest, if
+the predecessor has it or can get it with reasonable efforts.
+
+  You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License.  For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+  11. Patents.
+
+  A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based.  The
+work thus licensed is called the contributor's "contributor version".
+
+  A contributor's "essential patent claims" are all patent claims
+owned or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version.  For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+  Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+  In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement).  To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+  If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

README.md

@@ -1,3 +1,7 @@
+[![Add to Firefox](https://img.shields.io/badge/Add%20to-Firefox-orange?logo=firefox&logoColor=white)](https://addons.mozilla.org/en-US/firefox/addon/video-speed-controller-v1/)
+
+
+
 # The science of accelerated playback
 
 **TL;DR: faster playback translates to better engagement and retention.**
@@ -74,10 +78,10 @@ You can try manually disabling Flash from the browser.
 [`igrigorik/videospeed`](https://github.com/igrigorik/videospeed) repository
 is a port of [`igrigorik`](https://github.com/igrigorik)'s videospeed Chrome 
 add-on for Firefox. This fork modifies the Chrome add-on code so that it works 
-in Firefox. This repo is the code behind the [Firefox Extension](https://addons.mozilla.org/en-us/firefox/addon/videospeed/)
+in Firefox. This repo is the code behind the [Firefox Extension](https://addons.mozilla.org/en-US/firefox/addon/video-speed-controller-v1/)
 whereas the [`igrigorik/videospeed`](https://github.com/igrigorik/videospeed)
 repository contains the code behind the [Chrome Extension](https://chrome.google.com/webstore/detail/video-speed-controller/nffaoalbilbmmfgbnbgppjihopabppdk).
 
 ### License
 
-(MIT License) - Copyright (c) 2014 Ilya Grigorik
+(GPLv3) - Copyright (c) 2025 Josh Patra

build.py

@@ -0,0 +1,118 @@
+import glob
+import os
+import re
+import shutil
+import tempfile
+import zipfile
+
+SCRIPT_NAME = os.path.basename(__file__)
+TARGET_FILE = "manifest.json"
+
+
+def zip_folder(output_name, folder, exclude_files, exclude_dirs):
+    with zipfile.ZipFile(output_name, "w", zipfile.ZIP_DEFLATED) as zipf:
+        for root, dirs, files in os.walk(folder):
+            dirs[:] = [
+                d
+                for d in dirs
+                if os.path.relpath(os.path.join(root, d), folder) not in exclude_dirs
+            ]
+            for file in files:
+                rel_path = os.path.relpath(os.path.join(root, file), folder)
+                if (
+                    file in exclude_files
+                    or rel_path in exclude_files
+                    or any(rel_path.startswith(ed + os.sep) for ed in exclude_dirs)
+                ):
+                    continue
+                zipf.write(os.path.join(root, file), arcname=rel_path)
+
+
+def update_version_line(file_path, new_version):
+    with open(file_path, "r", encoding="utf-8") as f:
+        lines = f.readlines()
+
+    updated = False
+    for i, line in enumerate(lines):
+        match = re.match(r'\s*"version":\s*"([^"]+)"', line)
+        if match:
+            old_version = match.group(1)
+            lines[i] = re.sub(
+                r'"version":\s*".+?"', f'"version": "{new_version}"', line
+            )
+            updated = True
+            print(
+                f"🛠️ Changed version in {file_path} from {old_version} ➜ {new_version}"
+            )
+            break
+
+    if updated:
+        with open(file_path, "w", encoding="utf-8") as f:
+            f.writelines(lines)
+    else:
+        print(f"⚠️ No version line found in {file_path}.")
+
+
+def main():
+    # Step 0: Remove all existing .xpi files upfront
+    xpi_files = glob.glob("*.xpi")
+    for f in xpi_files:
+        try:
+            os.remove(f)
+            print(f"🗑️ Removed existing archive: {f}")
+        except Exception as e:
+            print(f"⚠️ Failed to remove {f}: {e}")
+
+    base_version = input("Enter the new base version (e.g., 2.0.1): ").strip()
+    if not base_version:
+        print("❌ No version entered. Exiting.")
+        return
+
+    firefox_version = f"{base_version}.0"
+    current_dir = os.getcwd()
+    manifest_path = os.path.join(current_dir, TARGET_FILE)
+
+    # Step 1: Update manifest.json on disk to base_version
+    if os.path.exists(manifest_path):
+        update_version_line(manifest_path, base_version)
+    else:
+        print(f"❌ {TARGET_FILE} not found. Aborting.")
+        return
+
+    # Step 2: Create videospeed-github.xpi (exclude script, .git, AND videospeed-github.xpi itself)
+    exclude_files = [SCRIPT_NAME, "videospeed-github.xpi"]
+    exclude_dirs = [".git"]
+    zip_folder("videospeed-github.xpi", current_dir, exclude_files, exclude_dirs)
+    print("✅ Created videospeed-github.xpi")
+
+    # Step 3: Re-scan for .xpi files after GitHub archive creation, exclude them for Firefox zip
+    current_xpi_files = set(glob.glob("*.xpi"))
+    exclude_temp_files = current_xpi_files.union({SCRIPT_NAME})
+    exclude_temp_dirs = set(exclude_dirs)
+
+    # Step 4: Create videospeed-firefox.xpi from temp folder with version bumped to .0
+    with tempfile.TemporaryDirectory() as temp_dir:
+        for item in os.listdir(current_dir):
+            if item in exclude_temp_files or item in exclude_temp_dirs:
+                continue
+            src = os.path.join(current_dir, item)
+            dst = os.path.join(temp_dir, item)
+            if os.path.isdir(src):
+                shutil.copytree(src, dst)
+            else:
+                shutil.copy2(src, dst)
+
+        temp_manifest = os.path.join(temp_dir, TARGET_FILE)
+        if os.path.exists(temp_manifest):
+            update_version_line(temp_manifest, firefox_version)
+        else:
+            print(f"⚠️ {TARGET_FILE} not found in temp folder.")
+
+        zip_folder(
+            "videospeed-firefox.xpi", temp_dir, exclude_files=[], exclude_dirs=[]
+        )
+        print("✅ Created videospeed-firefox.xpi")
+
+
+if __name__ == "__main__":
+    main()

manifest.json

@@ -1,13 +1,13 @@
 {
   "name": "Video Speed Controller",
   "short_name": "videospeed",
-  "version": "0.6.3.3",
+  "version": "1.6.1",
   "manifest_version": 2,
   "description": "Speed up, slow down, advance and rewind HTML5 audio/video with shortcuts",
-  "homepage_url": "https://github.com/codebicycle/videospeed",
+  "homepage_url": "https://github.com/SoPat712/videospeed",
   "browser_specific_settings": {
     "gecko": {
-      "id": "{7be2ba16-0f1e-4d93-9ebc-5164397477a9}"
+      "id": "{ed860648-f54f-4dc9-9a0d-501aec4313f5}"
     }
   },
   "icons": {

options.css

@@ -5,6 +5,7 @@ body {
   font-family: sans-serif;
   font-size: 12px;
   color: rgb(48, 57, 66);
+  background-color: white;
 }
 
 h1,
@@ -110,3 +111,76 @@ select {
   color: transparent;
   text-shadow: 0 0 0 #000000;
 }
+
+/* Dark mode styles */
+@media (prefers-color-scheme: dark) {
+  body {
+    background-color: #1a1a1a;
+    color: #e0e0e0;
+  }
+
+  h3 {
+    color: #ffffff;
+  }
+
+  header {
+    border-bottom: 1px solid #333;
+    background: linear-gradient(#1a1a1a, #1a1a1a 40%, rgba(26, 26, 26, 0.92));
+  }
+
+  button {
+    background-image: linear-gradient(#404040, #404040 38%, #353535);
+    border: 1px solid rgba(255, 255, 255, 0.25);
+    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.08),
+      inset 0 1px 2px rgba(0, 0, 0, 0.75);
+    color: #e0e0e0;
+    text-shadow: 0 1px 0 rgb(20, 20, 20);
+  }
+
+  button:hover {
+    background-image: linear-gradient(#4a4a4a, #4a4a4a 38%, #3f3f3f);
+  }
+
+  input[type="text"], 
+  input[type="checkbox"],
+  select,
+  textarea {
+    background-color: #2a2a2a;
+    color: #e0e0e0;
+    border: 1px solid #555;
+  }
+
+  input[type="text"]:focus,
+  select:focus,
+  textarea:focus {
+    background-color: #333;
+    border-color: #777;
+    outline: none;
+  }
+
+  select option {
+    background-color: #2a2a2a;
+    color: #e0e0e0;
+  }
+
+  .customKey {
+    color: transparent;
+    text-shadow: 0 0 0 #e0e0e0;
+  }
+
+  #status {
+    color: #888;
+  }
+
+  a {
+    color: #66b3ff;
+  }
+
+  a:visited {
+    color: #cc99ff;
+  }
+
+  hr {
+    border-color: #333;
+  }
+}

options.html

@@ -1,4 +1,4 @@
-<!DOCTYPE html>
+<!doctype html>
 <html>
   <head>
     <title>Video Speed Controller: Options</title>
@@ -148,8 +148,13 @@
         <input id="rememberSpeed" type="checkbox" />
       </div>
       <div class="row">
-        <label for="forceLastSavedSpeed">Force last saved speed<br />
+        <label for="forceLastSavedSpeed"
-        <em>Useful for video players that override the speeds set by VideoSpeed</em></label>
+          >Force last saved speed<br />
+          <em
+            >Useful for video players that override the speeds set by
+            VideoSpeed</em
+          ></label
+        >
         <input id="forceLastSavedSpeed" type="checkbox" />
       </div>
       <div class="row">
@@ -175,6 +180,47 @@
       </div>
     </section>
 
+    <section id="nudgeSettings">
+      <h3>Subtitle Nudge Settings (Experimental - YouTube Only)</h3>
+      <div class="row">
+        <label for="enableSubtitleNudge"
+          >Enable Subtitle Nudge <br /><em
+            >Periodically 'nudges' video speed by a tiny amount to help keep
+            subtitles in sync on some sites (e.g. YouTube).</em
+          >
+        </label>
+        <input id="enableSubtitleNudge" type="checkbox" />
+      </div>
+      <div class="row">
+        <label for="subtitleNudgeInterval"
+          >Nudge Interval (milliseconds) <br /><em
+            >How often to nudge (e.g., 25-1000). Smaller values are more
+            frequent. Default: 25.</em
+          >
+        </label>
+        <input
+          id="subtitleNudgeInterval"
+          type="text"
+          value=""
+          placeholder="25"
+        />
+      </div>
+      <div class="row">
+        <label for="subtitleNudgeAmount"
+          >Nudge Amount (decimal) <br /><em
+            >How much to change speed by (e.g., 0.001). Very small values
+            recommended. Default: 0.001.</em
+          >
+        </label>
+        <input
+          id="subtitleNudgeAmount"
+          type="text"
+          value=""
+          placeholder="0.001"
+        />
+      </div>
+    </section>
+
     <button id="save">Save</button>
     <button id="restore">Restore Defaults</button>
     <button id="experimental">Show Experimental Features</button>
@@ -186,12 +232,12 @@
 
       <h4>Extension controls not appearing?</h4>
       <p>
-        This extension is only compatible with HTML5 audio and video. If you don't
+        This extension is only compatible with HTML5 audio and video. If you
-        see the controls showing up, chances are you are viewing a Flash content.
+        don't see the controls showing up, chances are you are viewing a Flash
-        If you want to confirm, try right-clicking on the content and inspect the
+        content. If you want to confirm, try right-clicking on the content and
-        menu: if it mentions flash, then that's the issue. That said, <b>most sites
+        inspect the menu: if it mentions flash, then that's the issue. That
-        will fallback to HTML5</b> if they detect that Flash is not available. You
+        said, <b>most sites will fallback to HTML5</b> if they detect that Flash
-        can try manually disabling Flash from the browser.
+        is not available. You can try manually disabling Flash from the browser.
       </p>
     </div>
   </body>

options.js

@@ -22,13 +22,17 @@ var tcDefaults = {
     twitter.com
     imgur.com
     teams.microsoft.com
-  `.replace(regStrip, "")
+  `.replace(regStrip, ""),
+  // ADDED: Nudge defaults
+  enableSubtitleNudge: true,
+  subtitleNudgeInterval: 25,
+  subtitleNudgeAmount: 0.001
 };
 
-var keyBindings = [];
+var keyBindings = []; // This is populated during save/restore
 
 var keyCodeAliases = {
-  0: "null",
+  /* ... same as your original ... */ 0: "null",
   null: "null",
   undefined: "null",
   32: "Space",
@@ -74,85 +78,55 @@ var keyCodeAliases = {
   220: "\\",
   221: "]",
   222: "'",
-  59:  ";",
+  59: ";",
-  61:  "+",
+  61: "+",
-  173: "-",
+  173: "-"
 };
 
 function recordKeyPress(e) {
+  /* ... same as your original ... */
   if (
-    (e.keyCode >= 48 && e.keyCode <= 57) || // Numbers 0-9
+    (e.keyCode >= 48 && e.keyCode <= 57) ||
-    (e.keyCode >= 65 && e.keyCode <= 90) || // Letters A-Z
+    (e.keyCode >= 65 && e.keyCode <= 90) ||
-    keyCodeAliases[e.keyCode] // Other character keys
+    keyCodeAliases[e.keyCode]
   ) {
     e.target.value =
       keyCodeAliases[e.keyCode] || String.fromCharCode(e.keyCode);
     e.target.keyCode = e.keyCode;
-
     e.preventDefault();
     e.stopPropagation();
   } else if (e.keyCode === 8) {
-    // Clear input when backspace pressed
     e.target.value = "";
   } else if (e.keyCode === 27) {
-    // When esc clicked, clear input
     e.target.value = "null";
     e.target.keyCode = null;
   }
 }
-
 function inputFilterNumbersOnly(e) {
+  /* ... same as your original ... */
   var char = String.fromCharCode(e.keyCode);
   if (!/[\d\.]$/.test(char) || !/^\d+(\.\d*)?$/.test(e.target.value + char)) {
     e.preventDefault();
     e.stopPropagation();
   }
 }
-
 function inputFocus(e) {
-  e.target.value = "";
+  /* ... same as your original ... */ e.target.value = "";
 }
-
 function inputBlur(e) {
-  e.target.value =
+  /* ... same as your original ... */ e.target.value =
     keyCodeAliases[e.target.keyCode] || String.fromCharCode(e.target.keyCode);
 }
-
+// function updateShortcutInputText(inputId, keyCode) { /* ... same as your original ... */ } // Not directly used in provided options.js logic flow
-function updateShortcutInputText(inputId, keyCode) {
-  document.getElementById(inputId).value =
-    keyCodeAliases[keyCode] || String.fromCharCode(keyCode);
-  document.getElementById(inputId).keyCode = keyCode;
-}
-
 function updateCustomShortcutInputText(inputItem, keyCode) {
-  inputItem.value = keyCodeAliases[keyCode] || String.fromCharCode(keyCode);
+  /* ... same as your original ... */ inputItem.value =
+    keyCodeAliases[keyCode] || String.fromCharCode(keyCode);
   inputItem.keyCode = keyCode;
 }
-
+var customActionsNoValues = ["pause", "muted", "mark", "jump", "display"]; // Original
-// List of custom actions for which customValue should be disabled
-var customActionsNoValues = ["pause", "muted", "mark", "jump", "display"];
-
 function add_shortcut() {
-  var html = `<select class="customDo">
+  /* ... same as your original ... */
-    <option value="slower">Decrease speed</option>
+  var html = `<select class="customDo"><option value="slower">Decrease speed</option><option value="faster">Increase speed</option><option value="rewind">Rewind</option><option value="advance">Advance</option><option value="reset">Reset speed</option><option value="fast">Preferred speed</option><option value="muted">Mute</option><option value="pause">Pause</option><option value="mark">Set marker</option><option value="jump">Jump to marker</option><option value="display">Show/hide controller</option></select><input class="customKey" type="text" placeholder="press a key"/><input class="customValue" type="text" placeholder="value (0.10)"/><select class="customForce"><option value="false">Do not disable website key bindings</option><option value="true">Disable website key bindings</option></select><button class="removeParent">X</button>`;
-    <option value="faster">Increase speed</option>
-    <option value="rewind">Rewind</option>
-    <option value="advance">Advance</option>
-    <option value="reset">Reset speed</option>
-    <option value="fast">Preferred speed</option>
-    <option value="muted">Mute</option>
-    <option value="pause">Pause</option>
-    <option value="mark">Set marker</option>
-    <option value="jump">Jump to marker</option>
-    <option value="display">Show/hide controller</option>
-    </select>
-    <input class="customKey" type="text" placeholder="press a key"/>
-    <input class="customValue" type="text" placeholder="value (0.10)"/>
-    <select class="customForce">
-    <option value="false">Do not disable website key bindings</option>
-    <option value="true">Disable website key bindings</option>
-    </select>
-    <button class="removeParent">X</button>`;
   var div = document.createElement("div");
   div.setAttribute("class", "row customs");
   div.innerHTML = html;
@@ -162,14 +136,13 @@ function add_shortcut() {
     customs_element.children[customs_element.childElementCount - 1]
   );
 }
-
 function createKeyBindings(item) {
+  /* ... same as your original ... */
   const action = item.querySelector(".customDo").value;
   const key = item.querySelector(".customKey").keyCode;
   const value = Number(item.querySelector(".customValue").value);
   const force = item.querySelector(".customForce").value;
-  const predefined = !!item.id; //item.id ? true : false;
+  const predefined = !!item.id;
-
   keyBindings.push({
     action: action,
     key: key,
@@ -178,9 +151,8 @@ function createKeyBindings(item) {
     predefined: predefined
   });
 }
-
-// Validates settings before saving
 function validate() {
+  /* ... same as your original ... */
   var valid = true;
   var status = document.getElementById("status");
   document
@@ -190,7 +162,7 @@ function validate() {
       match = match.replace(regStrip, "");
       if (match.startsWith("/")) {
         try {
-          var regexp = new RegExp(match);
+          new RegExp(match);
         } catch (err) {
           status.textContent =
             "Error: Invalid blacklist regex: " + match + ". Unable to save";
@@ -202,24 +174,45 @@ function validate() {
   return valid;
 }
 
-// Saves options to chrome.storage
+// MODIFIED: save_options to include nudge settings
 function save_options() {
-  if (validate() === false) {
+  if (validate() === false) return;
-    return;
+
-  }
+  keyBindings = []; // Reset global keyBindings before populating from DOM
-  keyBindings = [];
   Array.from(document.querySelectorAll(".customs")).forEach((item) =>
     createKeyBindings(item)
-  ); // Remove added shortcuts
+  );
 
-  var rememberSpeed = document.getElementById("rememberSpeed").checked;
+  var s = {}; // Object to hold all settings to be saved
-  var forceLastSavedSpeed = document.getElementById("forceLastSavedSpeed").checked;
+  s.rememberSpeed = document.getElementById("rememberSpeed").checked;
-  var audioBoolean = document.getElementById("audioBoolean").checked;
+  s.forceLastSavedSpeed = document.getElementById(
-  var enabled = document.getElementById("enabled").checked;
+    "forceLastSavedSpeed"
-  var startHidden = document.getElementById("startHidden").checked;
+  ).checked;
-  var controllerOpacity = document.getElementById("controllerOpacity").value;
+  s.audioBoolean = document.getElementById("audioBoolean").checked;
-  var blacklist = document.getElementById("blacklist").value;
+  s.enabled = document.getElementById("enabled").checked;
+  s.startHidden = document.getElementById("startHidden").checked;
+  s.controllerOpacity = document.getElementById("controllerOpacity").value;
+  s.blacklist = document
+    .getElementById("blacklist")
+    .value.replace(regStrip, "");
+  s.keyBindings = keyBindings; // Use the populated global keyBindings
 
+  // ADDED: Save nudge settings
+  s.enableSubtitleNudge = document.getElementById(
+    "enableSubtitleNudge"
+  ).checked;
+  s.subtitleNudgeInterval =
+    parseInt(document.getElementById("subtitleNudgeInterval").value, 10) ||
+    tcDefaults.subtitleNudgeInterval;
+  s.subtitleNudgeAmount =
+    parseFloat(document.getElementById("subtitleNudgeAmount").value) ||
+    tcDefaults.subtitleNudgeAmount;
+  // Basic validation for nudge interval and amount
+  if (s.subtitleNudgeInterval < 10) s.subtitleNudgeInterval = 10; // Min 10ms
+  if (s.subtitleNudgeAmount <= 0 || s.subtitleNudgeAmount > 0.1)
+    s.subtitleNudgeAmount = tcDefaults.subtitleNudgeAmount;
+
+  // Remove old flat settings (original logic)
   chrome.storage.sync.remove([
     "resetSpeed",
     "speedStep",
@@ -233,33 +226,22 @@ function save_options() {
     "advanceKeyCode",
     "fastKeyCode"
   ]);
-  chrome.storage.sync.set(
+
-    {
+  chrome.storage.sync.set(s, function () {
-      rememberSpeed: rememberSpeed,
+    var status = document.getElementById("status");
-      forceLastSavedSpeed: forceLastSavedSpeed,
+    status.textContent = "Options saved";
-      audioBoolean: audioBoolean,
+    setTimeout(function () {
-      enabled: enabled,
+      status.textContent = "";
-      startHidden: startHidden,
+    }, 1000);
-      controllerOpacity: controllerOpacity,
+  });
-      keyBindings: keyBindings,
-      blacklist: blacklist.replace(regStrip, "")
-    },
-    function () {
-      // Update status to let user know options were saved.
-      var status = document.getElementById("status");
-      status.textContent = "Options saved";
-      setTimeout(function () {
-        status.textContent = "";
-      }, 1000);
-    }
-  );
 }
 
-// Restores options from chrome.storage
+// MODIFIED: restore_options to include nudge settings
 function restore_options() {
   chrome.storage.sync.get(tcDefaults, function (storage) {
     document.getElementById("rememberSpeed").checked = storage.rememberSpeed;
-    document.getElementById("forceLastSavedSpeed").checked = storage.forceLastSavedSpeed;
+    document.getElementById("forceLastSavedSpeed").checked =
+      storage.forceLastSavedSpeed;
     document.getElementById("audioBoolean").checked = storage.audioBoolean;
     document.getElementById("enabled").checked = storage.enabled;
     document.getElementById("startHidden").checked = storage.startHidden;
@@ -267,65 +249,86 @@ function restore_options() {
       storage.controllerOpacity;
     document.getElementById("blacklist").value = storage.blacklist;
 
-    // ensure that there is a "display" binding for upgrades from versions that had it as a separate binding
+    // ADDED: Restore nudge settings
+    document.getElementById("enableSubtitleNudge").checked =
+      storage.enableSubtitleNudge;
+    document.getElementById("subtitleNudgeInterval").value =
+      storage.subtitleNudgeInterval;
+    document.getElementById("subtitleNudgeAmount").value =
+      storage.subtitleNudgeAmount;
+
+    // Original key binding restoration logic
+    if (
+      !Array.isArray(storage.keyBindings) ||
+      storage.keyBindings.length === 0
+    ) {
+      // If keyBindings missing or not an array, use defaults from tcDefaults
+      storage.keyBindings = tcDefaults.keyBindings;
+    }
     if (storage.keyBindings.filter((x) => x.action == "display").length == 0) {
       storage.keyBindings.push({
         action: "display",
         value: 0,
         force: false,
-        predefined: true
+        predefined: true,
+        key: storage.displayKeyCode || tcDefaults.displayKeyCode
       });
     }
 
+    // Clear existing dynamic shortcuts before restoring (if any were added by mistake)
+    const dynamicShortcuts = document.querySelectorAll(".customs:not([id])");
+    dynamicShortcuts.forEach((sc) => sc.remove());
+
     for (let i in storage.keyBindings) {
       var item = storage.keyBindings[i];
       if (item.predefined) {
-        //do predefined ones because their value needed for overlay
-        // document.querySelector("#" + item["action"] + " .customDo").value = item["action"];
         if (item["action"] == "display" && typeof item["key"] === "undefined") {
-          item["key"] = storage.displayKeyCode || tcDefaults.displayKeyCode; // V
+          item["key"] = storage.displayKeyCode || tcDefaults.displayKeyCode;
         }
-
+        if (customActionsNoValues.includes(item["action"])) {
-        if (customActionsNoValues.includes(item["action"]))
+          const el = document.querySelector(
-          document.querySelector(
             "#" + item["action"] + " .customValue"
-          ).disabled = true;
+          );
-
+          if (el) el.disabled = true;
-        updateCustomShortcutInputText(
+        }
-          document.querySelector("#" + item["action"] + " .customKey"),
+        const keyEl = document.querySelector(
-          item["key"]
+          "#" + item["action"] + " .customKey"
         );
-        document.querySelector("#" + item["action"] + " .customValue").value =
+        const valEl = document.querySelector(
-          item["value"];
+          "#" + item["action"] + " .customValue"
-        document.querySelector("#" + item["action"] + " .customForce").value =
+        );
-          item["force"];
+        const forceEl = document.querySelector(
+          "#" + item["action"] + " .customForce"
+        );
+        if (keyEl) updateCustomShortcutInputText(keyEl, item["key"]);
+        if (valEl) valEl.value = item["value"];
+        if (forceEl) forceEl.value = String(item["force"]); // Ensure string for select value
       } else {
-        // new ones
+        // Non-predefined, dynamically added shortcuts
         add_shortcut();
-        const dom = document.querySelector(".customs:last-of-type");
+        const dom = document.querySelector(".customs:last-of-type"); // Gets the newly added one
         dom.querySelector(".customDo").value = item["action"];
-
+        if (customActionsNoValues.includes(item["action"])) {
-        if (customActionsNoValues.includes(item["action"]))
           dom.querySelector(".customValue").disabled = true;
-
+        }
         updateCustomShortcutInputText(
           dom.querySelector(".customKey"),
           item["key"]
         );
         dom.querySelector(".customValue").value = item["value"];
-        dom.querySelector(".customForce").value = item["force"];
+        dom.querySelector(".customForce").value = String(item["force"]);
       }
     }
   });
 }
 
 function restore_defaults() {
+  /* ... same as your original, tcDefaults now includes nudge defaults ... */
+  // Remove all dynamically added shortcuts first
+  document.querySelectorAll(".customs:not([id])").forEach((el) => el.remove());
+  // Then set defaults and restore options, which will re-add predefined ones correctly
   chrome.storage.sync.set(tcDefaults, function () {
-    restore_options();
+    restore_options(); // This will populate based on tcDefaults
-    document
-      .querySelectorAll(".removeParent")
-      .forEach((button) => button.click()); // Remove added shortcuts
-    // Update status to let user know options were saved.
     var status = document.getElementById("status");
     status.textContent = "Default options restored";
     setTimeout(function () {
@@ -335,14 +338,15 @@ function restore_defaults() {
 }
 
 function show_experimental() {
+  /* ... same as your original ... */
   document
     .querySelectorAll(".customForce")
     .forEach((item) => (item.style.display = "inline-block"));
 }
 
 document.addEventListener("DOMContentLoaded", function () {
+  /* ... same as your original event listeners setup ... */
   restore_options();
-
   document.getElementById("save").addEventListener("click", save_options);
   document.getElementById("add").addEventListener("click", add_shortcut);
   document
@@ -353,34 +357,32 @@ document.addEventListener("DOMContentLoaded", function () {
     .addEventListener("click", show_experimental);
 
   function eventCaller(event, className, funcName) {
-    if (!event.target.classList || !event.target.classList.contains(className)) {
+    if (!event.target.classList || !event.target.classList.contains(className))
       return;
-    }
     funcName(event);
   }
-
+  document.addEventListener("keypress", (event) =>
-  document.addEventListener("keypress", (event) => {
+    eventCaller(event, "customValue", inputFilterNumbersOnly)
-    eventCaller(event, "customValue", inputFilterNumbersOnly);
+  );
-  });
+  document.addEventListener("focus", (event) =>
-  document.addEventListener("focus", (event) => {
+    eventCaller(event, "customKey", inputFocus)
-    eventCaller(event, "customKey", inputFocus);
+  );
-  });
+  document.addEventListener("blur", (event) =>
-  document.addEventListener("blur", (event) => {
+    eventCaller(event, "customKey", inputBlur)
-    eventCaller(event, "customKey", inputBlur);
+  );
-  });
+  document.addEventListener("keydown", (event) =>
-  document.addEventListener("keydown", (event) => {
+    eventCaller(event, "customKey", recordKeyPress)
-    eventCaller(event, "customKey", recordKeyPress);
+  );
-  });
+  document.addEventListener("click", (event) =>
-  document.addEventListener("click", (event) => {
     eventCaller(event, "removeParent", function () {
       event.target.parentNode.remove();
-    });
+    })
-  });
+  );
   document.addEventListener("change", (event) => {
     eventCaller(event, "customDo", function () {
       if (customActionsNoValues.includes(event.target.value)) {
         event.target.nextElementSibling.nextElementSibling.disabled = true;
-        event.target.nextElementSibling.nextElementSibling.value = 0;
+        event.target.nextElementSibling.nextElementSibling.value = 0; // Or "" if placeholder is preferred
       } else {
         event.target.nextElementSibling.nextElementSibling.disabled = false;
       }

popup.css

@@ -1,5 +1,7 @@
 body {
   min-width: 8em;
+  background-color: white;
+  color: #333;
 }
 
 hr {
@@ -32,3 +34,35 @@ button {
 .hide {
   display: none;
 }
+/* Dark mode styles */
+@media (prefers-color-scheme: dark) {
+  body {
+    background-color: #1a1a1a;
+    color: #e0e0e0;
+  }
+
+  hr {
+    border-top: 1px solid rgba(255, 255, 255, 0.3);
+  }
+
+  button {
+    background-image: linear-gradient(#404040, #404040 38%, #353535);
+    border: 1px solid rgba(255, 255, 255, 0.25);
+    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.08),
+      inset 0 1px 2px rgba(0, 0, 0, 0.75);
+    color: #e0e0e0;
+    text-shadow: 0 1px 0 rgb(20, 20, 20);
+  }
+
+  button:hover {
+    background-image: linear-gradient(#4a4a4a, #4a4a4a 38%, #3f3f3f);
+  }
+
+  button:active {
+    background-image: linear-gradient(#353535, #353535 38%, #2a2a2a);
+  }
+
+  #status {
+    color: #ccc;
+  }
+}

popup.html

@@ -1,4 +1,4 @@
-<!DOCTYPE html>
+<!doctype html>
 <html>
   <head>
     <title>Video Speed Controller: Popup</title>
@@ -6,6 +6,8 @@
     <script src="popup.js"></script>
   </head>
   <body>
+    <button id="refresh">Re-scan Page for Videos</button>
+    <hr />
     <button id="enable" class="hide">Enable</button>
     <button id="disable">Disable</button>
     <span id="status" class="hide"></span>

popup.js

@@ -19,6 +19,31 @@ document.addEventListener("DOMContentLoaded", function () {
     toggleEnabled(false, settingsSavedReloadMessage);
   });
 
+  // --- REVISED: "Re-scan" button functionality ---
+  document.querySelector("#refresh").addEventListener("click", function () {
+    setStatusMessage("Re-scanning page...");
+    chrome.tabs.query({ active: true, currentWindow: true }, function (tabs) {
+      if (tabs[0] && tabs[0].id) {
+        // Send a message to the content script, asking it to re-initialize.
+        chrome.tabs.sendMessage(
+          tabs[0].id,
+          { action: "rescan_page" },
+          function (response) {
+            if (chrome.runtime.lastError) {
+              // This error is expected on pages where content scripts cannot run.
+              setStatusMessage("Cannot run on this page.");
+            } else if (response && response.status === "complete") {
+              setStatusMessage("Scan complete. Closing...");
+              setTimeout(() => window.close(), 500); // Close popup on success.
+            } else {
+              setStatusMessage("Scan failed. Please reload the page.");
+            }
+          }
+        );
+      }
+    });
+  });
+
   chrome.storage.sync.get({ enabled: true }, function (storage) {
     toggleEnabledUI(storage.enabled);
   });
@@ -42,9 +67,9 @@ document.addEventListener("DOMContentLoaded", function () {
     const suffix = `${enabled ? "" : "_disabled"}.png`;
     chrome.browserAction.setIcon({
       path: {
-        "19": "icons/icon19" + suffix,
+        19: "icons/icon19" + suffix,
-        "38": "icons/icon38" + suffix,
+        38: "icons/icon38" + suffix,
-        "48": "icons/icon48" + suffix
+        48: "icons/icon48" + suffix
       }
     });
   }