trilium-themes/README.md

Trilium Themes

Gruvbox, Harbor and Coffee themes for TriliumNext – each available in a dark and a light variant. The themes are plain text/css files that override Trilium's --* variables on #trilium-app and the global menus.

Theme	Dark	Light	Source
Gruvbox	gruvbox-dark.css	gruvbox-light.css	morhetz/gruvbox (MIT)
Harbor	harbor-dark.css	harbor-light.css	HANCORE-linux/omarchy-harbor-theme (MIT)
Coffee	coffee-dark.css	coffee-latte.css	megabyte0x/omarchy-coffee-theme (MIT)

All variants are fixed (dark stays dark, light stays light) – Trilium user themes do not auto-switch with the system preference. Each theme is derived from Trilium's default next theme (next-dark / next-light as the base).

Palette overview

Family	Dark	Light
Gruvbox	bg #282828 / fg #ebdbb2 · red #fb4934 green #b8bb26 yellow #fabd2f	bg #fbf1c7 / fg #3c3836 · blue #076678 aqua #83a598
Harbor	bg #1b1b1b / fg #efebdc · coral #e75a50 gold #E1CE98 slate #77838a	bg #dfe4c4 / fg #1c2d28 · nord-blue #5e81ac
Coffee	bg #1d150f / fg #f0e2d0 · caramel #e0a15c cream-yellow #ffda92	bg #E8E3C3 / fg #2D1A1D · berry #8e2d53

Install in Trilium

1. In Trilium create a code note (type code) with mime text/css under a folder of your choice, e.g. Resource & Templates.
2. Copy the contents of the theme file you want into the note.
3. Add two labels to the note:
   • appTheme → the display name, e.g. Coffee (shown in the theme dropdown)
   • appThemeBase → next-dark for dark variants, next-light for light variants
4. Reload the app, then go to Options → Appearance → Theme and pick your theme.

Example attributes for the dark Coffee theme:

appTheme = Coffee
appThemeBase = next-dark
iconClass = bx bxs-coffee

Customising

The themes are variable-driven. Edit the --* values inside the #trilium-app { ... } block and the global :root { ... } block (menus/dropdowns render outside #trilium-app). The .ck-content rules at the bottom style note headers, tables and tree-lines per palette.

License

The theme files are released under the MIT License. The color schemes are derived from the repositories listed above, which are all MIT licensed – see the header comment in each file.