dsh-plugin-gemini-theme

dsh-plugin-gemini-theme

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A Gemini-styled skin for the DeepSeek Harness web client.

One stylesheet, layered over the client's own --dsw-* design tokens. The plugin contributes no DOM, no slot occupant and no service — installing it changes how the client looks, removing it restores the stock appearance, and nothing else in the stack knows the difference.

Install

dsh plugin --profile web add dsh-plugin-gemini-theme

Restart dsh web afterwards. Remove it the same way:

dsh plugin --profile web remove dsh-plugin-gemini-theme

What it restyles

The conversation ground and sidebar fill, the sidebar's capsule rows and round icon buttons, the new-chat pill, the hero greeting's scale, the composer's radius, fill and elevation, the blue backdrop glow behind it, the entrance animation when a blank session opens, and the fades at both ends of the scrolling regions.

Light and dark are both covered; the sheet follows whichever the client resolves.

How it works

The sheet mounts as a <style> tag under the plugin's own lifetime. Rules reach their targets through the class form CSS modules compile to — [hash]_[local], so a rule is written [class*="_local"] — which is what lets a skin live outside the packages it restyles. It loads before every feature package's own stylesheet, so its component rules carry !important.

That substring match is also the main hazard: _local matches any module that happens to name a class the same way. Rules that could reach a second component are narrowed by a tag qualifier, a :has() on something only the intended target contains, or an ancestor only the intended tree has.

Colours and sizes were sampled per-pixel from a reference rather than estimated; the comments in the sheet record where each number came from.

Limitations

Anything needing new DOM is out of scope for a stylesheet and is not here:

• The session header keeps its stock strip (title, mode chip, view tabs) rather than filing them behind one control.
• The hero greeting is the client's own line, not a rotating one.
• The sidebar opens in whatever state the client decides; the skin does not change its boot posture or width.
• No top progress bar during a turn — that needs a DOM signal the client does not publish.

License

MIT