Stylus is a fork of Stylish for Chrome, also compatible with Firefox as a WebExtension ## Highlights * In addition to the userstyles.org site, styles with customizable parameters can also be installed from .user.css or .user.styl URLs (see [Usercss format wiki](https://github.com/openstyles/stylus/wiki/Usercss)). * Site styles can be discovered and previewed in the popup using inline search with screenshot thumbnails. * A backup feature which is compatible with other userstyles managers. * Configurable automatic update function for installed styles. * Customizable UI, optional layouts, and tweaks. * Two different optional code validators with user-configurable rules: CSSLint and Stylelint. * Both validators use Web Worker API to run in a separate background thread inside the editor tab without blocking your interaction with the code. * CSSLint is heavily modified compared to the effectively frozen original one and supports various CSS3 features as well as CSS4 Color and CSS Grid syntax. ## Releases 1. [Chrome Web Store](https://chrome.google.com/webstore/detail/stylus/clngdbkpkpeebahjckkjfobafhncgmne) (or [beta](https://chrome.google.com/webstore/detail/stylus-beta/apmmpaebfobifelkijhaljbmpcgbjbdo)) 2. [Firefox add-ons](https://addons.mozilla.org/firefox/addon/styl-us/) (or [beta](https://addons.mozilla.org/en-US/firefox/addon/styl-us/versions/beta)) 3. [Opera add-ons](https://addons.opera.com/extensions/details/stylus/) ## Screenshots ![Style manager](https://user-images.githubusercontent.com/1310400/34453460-214eaa5c-ed67-11e7-843b-d8960b71db6e.png) ![Style editor](https://user-images.githubusercontent.com/1310400/34459585-3932cd94-ee05-11e7-9a1b-679522dddfb3.png) ![Popup config for usercss](https://user-images.githubusercontent.com/1310400/34453462-218a589a-ed67-11e7-9040-7d0469eeadc3.png) ![Popup inline search](https://user-images.githubusercontent.com/1310400/34453463-21a44368-ed67-11e7-93b2-e1c8f5aac868.png) ![Style manager config for usercss](https://user-images.githubusercontent.com/1310400/34453464-21bdaf9c-ed67-11e7-8517-62d2f02e1918.png) ![Options](https://user-images.githubusercontent.com/1310400/34453461-216aee4c-ed67-11e7-92db-ea21c1da5826.png) ## Help [![Discord][chat-image]][chat-link] See the [help docs](http://userstyles.org/help/stylish_chrome) or [ask in userstyles.org forum](https://forum.userstyles.org). For Stylus specific questions and suggestions please use [review section](http://add0n.com/stylus.html#reviews) of the FAQs page. [chat-image]: https://img.shields.io/discord/379521691774353408.svg [chat-link]: https://discordapp.com/widget?id=379521691774353408 ## Contributing The source is hosted on [GitHub](https://github.com/openstyles/stylus) and pull requests are welcome. You can help us translate the extension on [Transifex](https://www.transifex.com/github-7/Stylus). When `messages.json` file is ready to be merged, please open a new bug report in [stylus/issues](https://github.com/openstyles/stylus/issues). See our [contributing](./.github/CONTRIBUTING.md) page for more details. ## License For copyright status of the "codemirror" directory, see [codemirror/LICENSE](https://github.com/openstyles/stylus/blob/master/src/vendor/codemirror/LICENSE). Everything else is: Copyright (C) 2005-2014 Jason Barnabe Copyright (C) 2017 Stylus Team 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 .