Add to Chrome from the Chrome Web Store.
A custom dark theme for GitHub that replaces the default color palette with the Tomorrow Night Darkly aesthetic. Requires the Stylus browser extension.
Install GitHub Theme from UserStyles.world.
- Backgrounds, text, borders, and overlays
- Contribution graph (purple gradient)
- Success/open states, diff views, and progress bars
- Buttons, controls, tooltips, menus, and navigation
- CodeMirror editor syntax highlighting
- Header, avatars, topic tags, and timeline badges
- 470+ Primer design token overrides
A custom dark theme for Mattermost matching the Tomorrow Night Darkly palette.
Open Settings -> Display -> Theme -> Custom Theme -> Import theme colors and paste the contents of mattermost/tomorrow-night-darkly.json. Full install steps and the color mapping are in the Mattermost theme README.
A dark theme for Firefox mirroring the Chrome theme's palette. Load it via about:debugging -> This Firefox -> Load Temporary Add-on and select firefox/theme/manifest.json. See the Firefox theme README for details.
A dark color theme for VS Code, keyword-forward pink with a full workbench and syntax map. Copy the vscode/ folder into your extensions directory (or build a .vsix with vsce package), then pick Tomorrow Night Darkly in the theme selector. See the VS Code theme README.
A dark sidebar theme for Slack. Copy the color string from slack/tomorrow-night-darkly.txt and paste it into Preferences -> Themes -> Create a custom theme. See the Slack theme README.
A dark theme for Discord via BetterDiscord/Vencord. Drop discord/tomorrow-night-darkly.theme.css into your Themes folder and enable it. Best-effort (Discord internals shift); see the Discord theme README.
A 16-color ANSI scheme for terminals. iTerm2 users import terminal/tomorrow-night-darkly.itermcolors; Windows Terminal users add terminal/windows-terminal.json to their schemes. A generic color table for any other terminal is in the terminal theme README.