Claude Code theme¶

.claude/themes/cyberdream.json is a complete base: dark theme override that maps every visual role Claude Code exposes to a cyberdream color.

Activation¶

In .claude/settings.json:

"theme": "custom:cyberdream"

The custom: prefix tells Claude Code to look in .claude/themes/<name>.json rather than loading a built-in theme.

Structure¶

.claude/themes/cyberdream.json

{
    "name": "Cyberdream",
    "base": "dark",
    "overrides": {
        "claude": "#FF5EA0",
        "claudeShimmer": "#FF5EF1",
        "text": "#FFFFFF",
        "inverseText": "#16181A",
        "inactive": "#3C4048",
        "subtle": "#3C4048",
        "suggestion": "#5EA1FF",
        "permission": "#BD5EFF",
        "remember": "#BD5EFF",

        "success": "#5EFF6C",
        "error": "#FF6E5E",
        "warning": "#F1FF5E",
        "merged": "#BD5EFF",

        "promptBorder": "#5EA1FF",
        "planMode": "#5EF1FF",
        "autoAccept": "#5EFF6C",
        "bashBorder": "#FF5EA0",
        "ide": "#5EA1FF",
        "fastMode": "#FFBD5E"
        // … plus diff colors, rate-limit bars, subagent rainbow, etc.
    }
}

Notable mappings¶

Role	Color	Meaning
`claude`	`#FF5EA0` pink	Claude's own messages and avatar.
`permission`	`#BD5EFF` purple	Permission prompts (e.g., "Allow Bash to run X?").
`planMode`	`#5EF1FF` cyan	Plan mode border / accents.
`autoAccept`	`#5EFF6C` green	Auto-accept indicator.
`bashBorder`	`#FF5EA0` pink	Bash invocation border.
`fastMode`	`#FFBD5E` orange	Fast-mode badge.
`success` / `error` / `warning`	green / red / yellow	Standard status colors.
`diffAdded` / `diffRemoved`	dark green / dark red	Diff backgrounds in code blocks.

Shimmer pairs¶

Several roles have a "shimmer" companion — a lighter variant used during animations (thinking, streaming, etc.). Examples:

claude / claudeShimmer — pink → magenta
permission / permissionShimmer — purple → lavender
fastMode / fastModeShimmer — orange → light orange

These keep the animated effects on-brand even when they pulse out to lighter shades.

Subagent rainbow¶

*_FOR_SUBAGENTS_ONLY keys define the colors used to distinguish parallel subagents in the UI. They map directly to the cyberdream palette's primary hues:

Key	Color
`red_FOR_SUBAGENTS_ONLY`	`#FF6E5E`
`blue_FOR_SUBAGENTS_ONLY`	`#5EA1FF`
`green_FOR_SUBAGENTS_ONLY`	`#5EFF6C`
`yellow_FOR_SUBAGENTS_ONLY`	`#F1FF5E`
`purple_FOR_SUBAGENTS_ONLY`	`#BD5EFF`
`orange_FOR_SUBAGENTS_ONLY`	`#FFBD5E`
`pink_FOR_SUBAGENTS_ONLY`	`#FF5EA0`
`cyan_FOR_SUBAGENTS_ONLY`	`#5EF1FF`