ui-song-theme

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A Song-inspired visual theme plugin for DeepSeek Harness. It contributes a reversible ThemeRuntime.overrideTokens() layer with complete light and dark values while preserving the user's light, dark, or system preference.

The light palette combines silk-paper surfaces, warm ink text, botanical gray-green interactions, and cinnabar error states. The dark palette uses pine-ink green-black surfaces with a restrained pale-jade accent. Display headings prefer installed Song and CJK serif fonts; body text keeps the Harness sans-serif stack. The layer also recasts visible legacy blue selections and the browser focus outline into the same botanical color family.

Install

Install the repository as a bundle into a Web profile:

dsh plugin --profile web add github:yunfei07/ui-song-theme
dsh --profile web

For reproducible installations, pin a commit:

dsh plugin --profile web add github:yunfei07/ui-song-theme#<commit-sha>

The repository commits its lib/ artifacts, so a GitHub installation does not need to run a package build script. The bundle adds a unique ui-song-theme-external client row; its theme service injection ensures the base dsh theme is ready before this token layer mounts. That row stacks after the Web bundle's built-in theme, and removing the external plugin restores the built-in layer.

Remove it with:

dsh plugin --profile web remove ui-song-theme

Palette

Role	Light	Dark
Base surface	Silk paper	Night ink
Primary text	Warm ink	Pale paper
Accent	Pine botanical green	Restrained pale jade
Error	Cinnabar	Light cinnabar
Geometry	2 to 12 px semantic radii	Same

Every override has paired light and dark values. Unloading the plugin removes only its layer and restores the theme below it.

Development

corepack pnpm@11.21.0 install
pnpm check
pnpm build
pnpm pack:check

Build output is committed intentionally because dsh supports installing plugins directly from Git repositories.

Compatibility

• Node.js ^22.19.0 or >=24.0.0
• DeepSeek Harness UI theme >=0.1.0-rc.6 <0.2.0
• System font availability affects exact Song glyph metrics

License

MIT