CSS Theme

Open-source CSS projects categorized as Theme

Top 23 CSS Theme Projects

  1. tomorrow-theme

    Tomorrow Theme

  2. CodeRabbit

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  3. jupyter-themes

    Custom Jupyter Notebook Themes

    Project mention: List of awesome CSS frameworks, libraries and software | dev.to | 2024-05-28

    dunovank/jupyter-themes - Custom Jupyter Notebook Themes

  4. GitHub-Dark

    :octocat: Dark GitHub style

  5. spicetify-themes

    A community-driven collection of themes for customizing Spotify through Spicetify - https://github.com/spicetify/cli

    Project mention: Spicetify-Themes: A Community-Driven Collection of Themes for Spotify | news.ycombinator.com | 2024-09-29
  6. obsidian-minimal

    A distraction-free and highly customizable theme for Obsidian.

  7. firefox-gnome-theme

    A GNOME👣 theme for Firefox🔥

    Project mention: Add Water – Keep Firefox in Fashion | news.ycombinator.com | 2025-02-12

    - (not exactly a feature, but it also supports Firefox variants like Librewolf and Floorp)

    [0] https://github.com/rafaelmardojai/firefox-gnome-theme

  8. theme.park

    A collection of themes/skins for 50 selfhosted apps!

  9. SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

    SaaSHub logo
  10. flexoki

    An inky color scheme for prose and code.

    Project mention: Uchū · the color scheme for internet lovers | news.ycombinator.com | 2025-02-16

    This is nice.

    Recently discovered something similar: Flexoki - https://stephango.com/flexoki

  11. hugo-paper

    🪺 A simple, clean, customizable Hugo theme

  12. matcha

    🍵 Drop-in semantic styling library in pure CSS. Highly customizable and perfect for simple websites and prototyping web apps!

    Project mention: Show HN: Mizu.js – Bringing back simplicity in web apps creation | news.ycombinator.com | 2024-12-19

    The learning curve is that small.

    Also, you may have heard of https://matcha.mizu.sh, a CSS stylesheet to instantly make your web page stylized.

  13. Vimix-gtk-themes

    Vimix is a flat Material Design theme for GTK 3, GTK 2 and Gnome-Shell etc.

  14. flat-remix-gnome

    Flat Remix is a GNOME Shell theme inspired by material design. It is mostly flat using a colorful palette with some shadows, highlights, and gradients for some depth.

  15. Sweet

    Light and dark colorful Gtk3.20+ theme

  16. cayman-theme

    A responsive theme for GitHub Pages

  17. Firefox-Mod-Blur

    Firefox CSS Theme - For dark theme lovers / More compact / Modular / Blur

  18. dots

    Nothing here but Dotfiles & Customization 💫

  19. obsidian

    Comfy, playful but productive theme for Obsidian. "Primary instantly puts you in a relaxed state that opens the door to creativity and exploration. Wonderfully executed down to the smallest details,"

  20. archie

    A minimal Hugo Theme

  21. hexo-theme-pure

    Hexo theme pure. It's a pure theme for Hexo.

  22. hextra

    🔯 Modern, batteries-included Hugo theme for creating beautiful doc, blog and static websites

    Project mention: Hextra: A Modern Hugo Theme with Built-In Tools for Docs, Blogs, and More | news.ycombinator.com | 2024-10-07
  23. thunderbird-monterail

    A set of themes for thunderbird inspired by a Monterail blog post

  24. hugo-theme-jane

    A readable & concise theme for Hugo, color schemes to choose, easy to personalize. Working well since 2018.

  25. firefox-gx

    Opera GX Skin for Firefox

  26. SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

    SaaSHub logo
NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

CSS Theme discussion

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CSS Theme related posts

  • Firexox 136 Desktop gets Vertical Tabs

    1 project | news.ycombinator.com | 4 Mar 2025
  • Add Water – Keep Firefox in Fashion

    2 projects | news.ycombinator.com | 12 Feb 2025
  • Minimal is an open source distraction-free theme for Obsidian

    1 project | news.ycombinator.com | 20 Jan 2024
  • Is there anyway to remove the underline from linked notes?

    1 project | /r/ObsidianMD | 7 Dec 2023
  • Dark Obsidian [Modified]

    1 project | /r/u_user_sudo | 5 Dec 2023
  • Appreciation post: after 10 years, I'm back on using Firefox as my primary browser

    1 project | /r/firefox | 5 Dec 2023
  • Web Browser and Ubuntu Software Application not picking gtk theme

    1 project | /r/Ubuntu | 19 Sep 2023
  • A note from our sponsor - CodeRabbit
    coderabbit.ai | 21 Mar 2025
    Revolutionize your code reviews with AI. CodeRabbit offers PR summaries, code walkthroughs, 1-click suggestions, and AST-based analysis. Boost productivity and code quality across all major languages with each PR. Learn more →

Index

What are some of the best open-source Theme projects in CSS? This list will help you:

# Project Stars
1 tomorrow-theme 13,786
2 jupyter-themes 9,789
3 GitHub-Dark 9,708
4 spicetify-themes 5,317
5 obsidian-minimal 3,994
6 firefox-gnome-theme 3,636
7 theme.park 2,540
8 flexoki 2,321
9 hugo-paper 2,216
10 matcha 1,840
11 Vimix-gtk-themes 1,660
12 flat-remix-gnome 1,597
13 Sweet 1,533
14 cayman-theme 1,525
15 Firefox-Mod-Blur 1,454
16 dots 1,397
17 obsidian 1,212
18 archie 1,122
19 hexo-theme-pure 1,104
20 hextra 1,088
21 thunderbird-monterail 1,045
22 hugo-theme-jane 951
23 firefox-gx 918

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Did you know that CSS is
the 16th most popular programming language
based on number of references?