Themes

opencode supports a flexible JSON-based theme system that allows users to create and customize themes easily.

Theme Loading Hierarchy

Themes are loaded from multiple directories in the following order (later directories override earlier ones):

1. Built-in themes - Embedded in the binary
2. User config directory - ~/.config/opencode/themes/*.json (or $XDG_CONFIG_HOME/opencode/themes/*.json)
3. Project root directory - <project-root>/.opencode/themes/*.json
4. Current working directory - ./.opencode/themes/*.json

If multiple directories contain a theme with the same name, the theme from the directory with higher priority will be used.

Creating a Custom Theme

To create a custom theme, create a JSON file in one of the theme directories:

# For user-wide themes
mkdir -p ~/.config/opencode/themes
vim ~/.config/opencode/themes/my-theme.json

# For project-specific themes
mkdir -p .opencode/themes
vim .opencode/themes/my-theme.json

Theme JSON Format

Themes use a flexible JSON format with support for:

• Hex colors: "#ffffff"
• ANSI colors: 3 (0-255)
• Color references: "primary" or custom definitions
• Dark/light variants: {"dark": "#000", "light": "#fff"}

Example Theme

{
  "$schema": "https://opencode.ai/theme.json",
  "defs": {
    "nord0": "#2E3440",
    "nord1": "#3B4252",
    "nord2": "#434C5E",
    "nord3": "#4C566A",
    "nord4": "#D8DEE9",
    "nord5": "#E5E9F0",
    "nord6": "#ECEFF4",
    "nord7": "#8FBCBB",
    "nord8": "#88C0D0",
    "nord9": "#81A1C1",
    "nord10": "#5E81AC",
    "nord11": "#BF616A",
    "nord12": "#D08770",
    "nord13": "#EBCB8B",
    "nord14": "#A3BE8C",
    "nord15": "#B48EAD"
  },
  "theme": {
    "primary": {
      "dark": "nord8",
      "light": "nord10"
    },
    "secondary": {
      "dark": "nord9",
      "light": "nord9"
    },
    "accent": {
      "dark": "nord7",
      "light": "nord7"
    },
    "error": {
      "dark": "nord11",
      "light": "nord11"
    },
    "warning": {
      "dark": "nord12",
      "light": "nord12"
    },
    "success": {
      "dark": "nord14",
      "light": "nord14"
    },
    "info": {
      "dark": "nord8",
      "light": "nord10"
    },
    "text": {
      "dark": "nord4",
      "light": "nord0"
    },
    "textMuted": {
      "dark": "nord3",
      "light": "nord1"
    },
    "background": {
      "dark": "nord0",
      "light": "nord6"
    },
    "backgroundPanel": {
      "dark": "nord1",
      "light": "nord5"
    },
    "backgroundElement": {
      "dark": "nord1",
      "light": "nord4"
    },
    "border": {
      "dark": "nord2",
      "light": "nord3"
    },
    "borderActive": {
      "dark": "nord3",
      "light": "nord2"
    },
    "borderSubtle": {
      "dark": "nord2",
      "light": "nord3"
    },
    "diffAdded": {
      "dark": "nord14",
      "light": "nord14"
    },
    "diffRemoved": {
      "dark": "nord11",
      "light": "nord11"
    },
    "diffContext": {
      "dark": "nord3",
      "light": "nord3"
    },
    "diffHunkHeader": {
      "dark": "nord3",
      "light": "nord3"
    },
    "diffHighlightAdded": {
      "dark": "nord14",
      "light": "nord14"
    },
    "diffHighlightRemoved": {
      "dark": "nord11",
      "light": "nord11"
    },
    "diffAddedBg": {
      "dark": "#3B4252",
      "light": "#E5E9F0"
    },
    "diffRemovedBg": {
      "dark": "#3B4252",
      "light": "#E5E9F0"
    },
    "diffContextBg": {
      "dark": "nord1",
      "light": "nord5"
    },
    "diffLineNumber": {
      "dark": "nord2",
      "light": "nord4"
    },
    "diffAddedLineNumberBg": {
      "dark": "#3B4252",
      "light": "#E5E9F0"
    },
    "diffRemovedLineNumberBg": {
      "dark": "#3B4252",
      "light": "#E5E9F0"
    },
    "markdownText": {
      "dark": "nord4",
      "light": "nord0"
    },
    "markdownHeading": {
      "dark": "nord8",
      "light": "nord10"
    },
    "markdownLink": {
      "dark": "nord9",
      "light": "nord9"
    },
    "markdownLinkText": {
      "dark": "nord7",
      "light": "nord7"
    },
    "markdownCode": {
      "dark": "nord14",
      "light": "nord14"
    },
    "markdownBlockQuote": {
      "dark": "nord3",
      "light": "nord3"
    },
    "markdownEmph": {
      "dark": "nord12",
      "light": "nord12"
    },
    "markdownStrong": {
      "dark": "nord13",
      "light": "nord13"
    },
    "markdownHorizontalRule": {
      "dark": "nord3",
      "light": "nord3"
    },
    "markdownListItem": {
      "dark": "nord8",
      "light": "nord10"
    },
    "markdownListEnumeration": {
      "dark": "nord7",
      "light": "nord7"
    },
    "markdownImage": {
      "dark": "nord9",
      "light": "nord9"
    },
    "markdownImageText": {
      "dark": "nord7",
      "light": "nord7"
    },
    "markdownCodeBlock": {
      "dark": "nord4",
      "light": "nord0"
    },
    "syntaxComment": {
      "dark": "nord3",
      "light": "nord3"
    },
    "syntaxKeyword": {
      "dark": "nord9",
      "light": "nord9"
    },
    "syntaxFunction": {
      "dark": "nord8",
      "light": "nord8"
    },
    "syntaxVariable": {
      "dark": "nord7",
      "light": "nord7"
    },
    "syntaxString": {
      "dark": "nord14",
      "light": "nord14"
    },
    "syntaxNumber": {
      "dark": "nord15",
      "light": "nord15"
    },
    "syntaxType": {
      "dark": "nord7",
      "light": "nord7"
    },
    "syntaxOperator": {
      "dark": "nord9",
      "light": "nord9"
    },
    "syntaxPunctuation": {
      "dark": "nord4",
      "light": "nord0"
    }
  }
}

Color Definitions

The defs section (optional) allows you to define reusable colors that can be referenced in the theme.

Built-in Themes

opencode comes with several built-in themes:

• opencode - Default opencode theme
• tokyonight - Tokyonight theme
• everforest - Everforest theme
• ayu - Ayu dark theme
• catppuccin - Catppuccin theme
• gruvbox - Gruvbox theme
• kanagawa - Kanagawa theme
• nord - Nord theme
• and more (see ./packages/tui/internal/theme/themes)

Using a Theme

To use a theme, set it in your opencode configuration or select it from the theme dialog in the TUI.

opencode.json

{
  "$schema": "https://opencode.ai/config.json",
  "theme": "tokyonight"
}