chore: import upstream snapshot with attribution
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# Themes
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Gemini CLI supports a variety of themes to customize its color scheme and
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appearance. You can change the theme to suit your preferences via the `/theme`
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command or `"theme":` configuration setting.
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## Available themes
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Gemini CLI comes with a selection of pre-defined themes, which you can list
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using the `/theme` command within Gemini CLI:
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- **Dark themes:**
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- `ANSI`
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- `Atom One`
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- `Ayu`
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- `Default`
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- `Dracula`
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- `GitHub`
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- `Holiday`
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- `Shades Of Purple`
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- `Solarized Dark`
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- `Tokyo Night`
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- **Light themes:**
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- `ANSI Light`
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- `Ayu Light`
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- `Default Light`
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- `GitHub Light`
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- `Google Code`
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- `Solarized Light`
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- `Xcode`
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### Changing themes
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1. Enter `/theme` into Gemini CLI.
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2. A dialog or selection prompt appears, listing the available themes.
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3. Using the arrow keys, select a theme. Some interfaces might offer a live
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preview or highlight as you select.
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4. Confirm your selection to apply the theme.
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<!-- prettier-ignore -->
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> [!NOTE]
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> If a theme is defined in your `settings.json` file (either by name or
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> by a file path), you must remove the `"theme"` setting from the file before
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> you can change the theme using the `/theme` command.
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### Theme persistence
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Selected themes are saved in Gemini CLI's
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[configuration](../reference/configuration.md) so your preference is remembered
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across sessions.
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---
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## Custom color themes
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Gemini CLI lets you create your own custom color themes by specifying them in
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your `settings.json` file. This gives you full control over the color palette
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used in the CLI.
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### How to define a custom theme
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Add a `customThemes` block to your user, project, or system `settings.json`
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file. Each custom theme is defined as an object with a unique name and a set of
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nested configuration objects. For example:
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```json
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{
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"ui": {
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"customThemes": {
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"MyCustomTheme": {
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"name": "MyCustomTheme",
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"type": "custom",
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"background": {
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"primary": "#181818"
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},
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"text": {
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"primary": "#f0f0f0",
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"secondary": "#a0a0a0"
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}
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}
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}
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}
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}
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```
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**Configuration objects:**
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- **`text`**: Defines text colors.
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- `primary`: The default text color.
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- `secondary`: Used for less prominent text.
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- `link`: Color for URLs and links.
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- `accent`: Used for highlights and emphasis.
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- `response`: Precedence over `primary` for rendering model responses.
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- **`background`**: Defines background colors.
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- `primary`: The main background color of the UI.
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- `diff.added`: Background for added lines in diffs.
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- `diff.removed`: Background for removed lines in diffs.
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- **`border`**: Defines border colors.
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- `default`: The standard border color.
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- `focused`: Border color when an element is focused.
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- **`status`**: Colors for status indicators.
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- `success`: Used for successful operations.
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- `warning`: Used for warnings.
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- `error`: Used for errors.
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- **`ui`**: Other UI elements.
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- `comment`: Color for code comments.
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- `symbol`: Color for code symbols and operators.
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- `gradient`: An array of colors used for gradient effects.
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**Required properties:**
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- `name` (must match the key in the `customThemes` object and be a string)
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- `type` (must be the string `"custom"`)
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While all sub-properties are technically optional, we recommend providing at
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least `background.primary`, `text.primary`, `text.secondary`, and the various
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accent colors via `text.link`, `text.accent`, and `status` to ensure a cohesive
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UI.
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You can use either hex codes (for example, `#FF0000`) **or** standard CSS color
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names (for example, `coral`, `teal`, `blue`) for any color value. See
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[CSS color names](https://developer.mozilla.org/en-US/docs/Web/CSS/color_value#color_keywords)
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for a full list of supported names.
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You can define multiple custom themes by adding more entries to the
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`customThemes` object.
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### Loading themes from a file
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In addition to defining custom themes in `settings.json`, you can also load a
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theme directly from a JSON file by specifying the file path in your
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`settings.json`. This is useful for sharing themes or keeping them separate from
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your main configuration.
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To load a theme from a file, set the `theme` property in your `settings.json` to
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the path of your theme file:
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```json
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{
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"ui": {
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"theme": "/path/to/your/theme.json"
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}
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}
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```
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The theme file must be a valid JSON file that follows the same structure as a
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custom theme defined in `settings.json`.
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**Example `my-theme.json`:**
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```json
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{
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"name": "Gruvbox Dark",
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"type": "custom",
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"background": {
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"primary": "#282828",
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"diff": {
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"added": "#2b3312",
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"removed": "#341212"
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}
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},
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"text": {
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"primary": "#ebdbb2",
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"secondary": "#a89984",
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"link": "#83a598",
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"accent": "#d3869b"
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},
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"border": {
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"default": "#3c3836",
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"focused": "#458588"
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},
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"status": {
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"success": "#b8bb26",
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"warning": "#fabd2f",
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"error": "#fb4934"
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},
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"ui": {
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"comment": "#928374",
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"symbol": "#8ec07c",
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"gradient": ["#cc241d", "#d65d0e", "#d79921"]
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}
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}
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```
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<!-- prettier-ignore -->
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> [!WARNING]
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> For your safety, Gemini CLI will only load theme files that
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> are located within your home directory. If you attempt to load a theme from
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> outside your home directory, a warning will be displayed and the theme will
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> not be loaded. This is to prevent loading potentially malicious theme files
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> from untrusted sources.
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### Example custom theme
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<img src="/docs/assets/theme-custom.png" alt="Custom theme example" width="600" />
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### Using your custom theme
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- Select your custom theme using the `/theme` command in Gemini CLI. Your custom
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theme will appear in the theme selection dialog.
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- Or, set it as the default by adding `"theme": "MyCustomTheme"` to the `ui`
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object in your `settings.json`.
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- Custom themes can be set at the user, project, or system level, and follow the
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same [configuration precedence](../reference/configuration.md) as other
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settings.
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### Themes from extensions
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[Extensions](../extensions/reference.md#themes) can also provide custom themes.
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Once an extension is installed and enabled, its themes are automatically added
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to the selection list in the `/theme` command.
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Themes from extensions appear with the extension name in parentheses to help you
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identify their source, for example: `shades-of-green (green-extension)`.
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---
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## Dark themes
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### ANSI
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<img src="/docs/assets/theme-ansi-dark.png" alt="ANSI theme" width="600">
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### Atom One
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<img src="/docs/assets/theme-atom-one-dark.png" alt="Atom One theme" width="600">
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### Ayu
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<img src="/docs/assets/theme-ayu-dark.png" alt="Ayu theme" width="600">
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### Default
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<img src="/docs/assets/theme-default-dark.png" alt="Default theme" width="600">
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### Dracula
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<img src="/docs/assets/theme-dracula-dark.png" alt="Dracula theme" width="600">
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### GitHub
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<img src="/docs/assets/theme-github-dark.png" alt="GitHub theme" width="600">
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### Holiday
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<img src="/docs/assets/theme-holiday-dark.png" alt="Holiday theme" width="600">
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### Shades Of Purple
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<img src="/docs/assets/theme-shades-of-purple-dark.png" alt="Shades Of Purple theme" width="600">
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### Solarized Dark
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<img src="/docs/assets/theme-solarized-dark.png" alt="Solarized Dark theme" width="600">
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### Tokyo Night
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<img src="/docs/assets/theme-tokyonight-dark.png" alt="Tokyo Night theme" width="600">
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## Light themes
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### ANSI Light
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<img src="/docs/assets/theme-ansi-light.png" alt="ANSI Light theme" width="600">
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### Ayu Light
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<img src="/docs/assets/theme-ayu-light.png" alt="Ayu Light theme" width="600">
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### Default Light
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<img src="/docs/assets/theme-default-light.png" alt="Default Light theme" width="600">
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### GitHub Light
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<img src="/docs/assets/theme-github-light.png" alt="GitHub Light theme" width="600">
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### Google Code
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<img src="/docs/assets/theme-google-light.png" alt="Google Code theme" width="600">
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### Solarized Light
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<img src="/docs/assets/theme-solarized-light.png" alt="Solarized Light theme" width="600">
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### Xcode
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<img src="/docs/assets/theme-xcode-light.png" alt="Xcode Light theme" width="600">
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