# dsh-theme-plugin

**[English](README.md) · [简体中文](README.zh-CN.md)**

Theme studio for the DeepSeek Harness (DSH) Web GUI: five built-in presets plus fully customizable light/dark palettes — accent, background, foreground, UI and code fonts, translucent sidebar and contrast — applied instantly, with no page refresh.

## Features

- 🎨 **5 built-in presets** — `codex-warm`, `nord`, `solarized`, `graphite`, plus the stock DeepSeek theme
- 🖌️ **Full customization** — per-mode (`light.*` / `dark.*`) accent, background, foreground, UI font, code font, translucent sidebar and contrast; `custom` mode starts from scratch
- ⚡ **Instant hot-swap** — a Settings GUI ("Theme Studio") applies changes immediately through the official `ctx.theme.overrideTokens` API; light/dark follow the system preference
- 💾 **Persistent** — the selection is saved in browser `localStorage` and survives reloads
- 🧮 **70+ derived tokens** — three colors plus a contrast value expand into the whole semantic token set (borders, layers, scrollbar, tooltip, code blocks, bubbles, sidebar states…)
- 🪟 **Translucent sidebar** — real frosted sidebar via the `--dsw-specific-sidebar-fill` variable
- 🔌 **Official seams only** — host-side injection through `webServer.tapIndex`, no patched vendor files

## Installation

Requires DeepSeek Harness with the web profile enabled. Install from the official registry:

```sh
dsh plugin --profile web add github:BeiZi6/dsh-theme-plugin
```

Restart `dsh web` for the plugin to take effect.

To remove:

```sh
dsh plugin --profile web remove dsh-theme-plugin
```

## Usage

### Settings GUI (recommended)

After a restart, open **Settings → Theme Studio**:

- **Preset** — one-click chips: DeepSeek default / Codex warm / Nord / Solarized / Graphite / Custom
- **Colors** — color pickers for accent, background and foreground, with a "follow preset" reset
- **Fonts** — dropdowns for the UI font and the code font (common stacks included)
- **Translucent sidebar** — follow preset / on / off
- **Contrast** — slider 0–100 with preset restore

Every change applies instantly and persists locally; GUI selections take priority over host config.

> The `stock` preset derives no palette: color controls are disabled and only fonts can be overridden.

### Config reference

| Field | Type | Description |
|---|---|---|
| `preset` | enum | `stock` · `codex-warm` · `nord` · `solarized` · `graphite` · `custom` (default `codex-warm`) |
| `light.accent` | color | accent for light mode (primary buttons, links, …) |
| `light.background` | color | light-mode background |
| `light.foreground` | color | light-mode primary text |
| `light.uiFont` | CSS `font-family` | UI font stack |
| `light.codeFont` | CSS `font-family` | code font stack |
| `light.translucentSidebar` | enum | `preset` · `on` · `off` |
| `light.contrast` | number | 0–100; `-1` = keep preset value |
| `dark.*` | — | same fields for dark mode |

Empty strings mean "keep the preset value"; unset fields are not overridden at all.

Example — merge into the web profile patch (`$DSH_HOME/profiles/web/cordis.patch.yml`):

```yaml
- id: theme-plugin
  config:
    preset: codex-warm
    light:
      accent: '#FF6B35'
      background: '#FFFAF0'
      foreground: '#1A1A1A'
      uiFont: '"Inter", "PingFang SC", sans-serif'
      codeFont: '"JetBrains Mono", Consolas, monospace'
      translucentSidebar: off
      contrast: 70
    dark:
      accent: '#FFB07A'
      background: '#1A1A1A'
      foreground: '#F5F5F5'
      uiFont: '"Inter", "PingFang SC", sans-serif'
      codeFont: '"JetBrains Mono", Consolas, monospace'
      translucentSidebar: on
      contrast: 70
```

Only set the fields you want to change; leave the rest blank (`''` / `preset` / `-1`).

### Presets

| Preset | Style | Light bg / fg / accent | Dark bg / fg / accent |
|---|---|---|---|
| `stock` | DeepSeek default | — (no override) | — (no override) |
| `codex-warm` | Codex warm | `#F5F3EE` / `#1D1B16` / `#DA7756` | `#2D2D2B` / `#F9F9F7` / `#CC7D5E` |
| `nord` | Nord cool | `#ECEFF4` / `#2E3440` / `#5E81AC` | `#2E3440` / `#ECEFF4` / `#88C0D0` |
| `solarized` | Solarized | `#FDF6E3` / `#657B83` / `#B58900` | `#002B36` / `#839496` / `#268BD2` |
| `graphite` | Grayscale minimal | `#FAFAFA` / `#171717` / `#525252` | `#171717` / `#FAFAFA` / `#A3A3A3` |

`custom` starts from the `codex-warm` palette and takes every value from `light.*` / `dark.*`.

## How it works

- **Host half** (`index.js`) — registers a `webServer.tapIndex` hook so every served `index.html` gets a `<style>` block injected before `</head>`, after the stylesheet links, letting the overrides win by cascade order. This is the same official seam the built-in UI theme uses.
- **Specificity** — selectors are written as `html body` / `html body[data-ds-dark-theme]` to outrank the theme's static CSS variables.
- **Token derivation** — from background / foreground / accent plus a contrast factor, a small functional engine derives 70+ semantic tokens (border levels, layers, scrollbar, tooltip, markdown code blocks, bubbles, sidebar states…). Status colors (success / error / warn) keep their stock meaning.
- **Translucent sidebar** — `--dsw-specific-sidebar-fill` is emitted as `rgba(mix(bg, fg, 3%), 0.65)` when enabled; AppFrame / SidebarRoot / WorkspaceBrowser / TrajectoryTable consume that variable directly.
- **Client half** (`client.js`) — a web-shell module that registers a "Theme Studio" section under Settings and writes every change via `ctx.theme.overrideTokens`; the theme presenter emits the tokens inline on `<body>`, so the effect is instant and survives until the next selection. Selections persist in `localStorage`.

## Compatibility

- DeepSeek Harness Web GUI (`dsh web`)
- Node.js >= 22.19
- Peer dependencies: `@deepseek-ai/cordis` (^4), `@deepseek-ai/dsh-host-webserver` (^0.1.0-rc.6)

## License

MIT © Xu Yuanshan

## Links

- Repository: <https://github.com/BeiZi6/dsh-theme-plugin>
- Issues: <https://github.com/BeiZi6/dsh-theme-plugin/issues>

## 中文简介

为 DeepSeek Harness (DSH) Web GUI 打造的主题工作室插件:5 套内置预设(Codex 暖色 / Nord / Solarized / Graphite / 默认)+ 完全自定义;设置页内热切换、立即生效并持久化;通过官方 `webServer.tapIndex` 接缝向 index.html 注入主题 CSS,由背景/前景/强调三色与对比度函数式推导 70+ 语义令牌,并支持半透明侧边栏。