---
title: "rainbow-week"
url: "https://claudemods.dev/zh-tw/builds/rainbow-week-b3ec46"
source: "https://github.com/IVLIU/rainbow-week"
source_type: "github"
repo: "https://github.com/IVLIU/rainbow-week"
author: "IVLIU"
author_handle: "IVLIU"
stars: 0
category: "主題與外觀"
categories: ["themes"]
tags: ["color-palette", "custom-theme", "hooks", "statusline-accent", "theme"]
permission_level: 2
scan_complete: true
install: "claude plugin marketplace add IVLIU/rainbow-week\nclaude plugin install rainbow-week@rainbow-week"
added: "2026-10-28T16:34:21.240Z"
updated: "2026-10-28T16:33:34Z"
locale: "zh-tw"
content_locale: "en"
---

# rainbow-week

A Claude Code theme plugin that repaints Claude's accent colour (the `claude` token and prompt border) in one muted colour per weekday — red through violet — across four low-saturation palettes: Morandi, Monet, Vermeer and Song porcelain. Slash commands switch palettes or toggle the rotation, and the theme rolls over automatically after local midnight.

## Description

Rainbow Week is a Claude Code plugin that changes the accent colour of Claude's `claude` token and prompt border to a different muted colour for each weekday, walking the rainbow in order (red → orange → yellow → green → blue → indigo → violet).

Four low-saturation palettes are included: Morandi (default), Monet, Vermeer and Song porcelain. Each palette follows the same hue order in its own key, and shimmer partners (`claudeShimmer`, `promptBorderShimmer`) are derived automatically by lifting the main colour 22% toward white.

Install with `/plugin marketplace add IVLIU/rainbow-week` then `/plugin install rainbow-week@rainbow-week`, and restart Claude Code or pick "Rainbow Week" in `/theme`.

Commands:
- `/rainbow` — today's colour, active palette, on/off state
- `/rainbow palette` — list the four palettes with true-colour dot previews
- `/rainbow palette morandi|monet|vermeer|song` — switch palette, applied immediately
- `/rainbow on` / `/rainbow off` — toggle the rotation and restore the previous theme

Implementation: Claude Code's `theme` setting only accepts built-in presets, so the plugin writes `~/.claude/themes/rainbow-week.json` (a custom theme whose overrides hold today's colour, inheriting `base` from your current preset so light stays light), points `theme` in `~/.claude/settings.json` at `custom:rainbow-week`, and re-applies just past local midnight so long-running sessions turn over on their own. The theme directory is watched, so the rewrite repaints without a restart. Your previous theme is remembered and restored by `/rainbow off`.

Notes: writes only `~/.claude/themes/rainbow-week.json` and the `theme` key of `~/.claude/settings.json`; requires a Claude Code build with custom themes (2.1.118+); colour dots use 24-bit ANSI escapes and appear plain white on terminals without true colour.

## Install

```
claude plugin marketplace add IVLIU/rainbow-week
claude plugin install rainbow-week@rainbow-week
```

## Original README

# Rainbow Week

A Claude Code mod that paints Claude's accent colour — the `claude` token and the prompt border — in one muted colour per weekday, following rainbow order: red → orange → yellow → green → blue → indigo → violet.

Four palettes, all low-saturation: **Morandi** (default), **Monet**, **Vermeer**, and **Song porcelain**.

## Install

```
/plugin marketplace add IVLIU/rainbow-week
/plugin install rainbow-week@rainbow-week
```

Then restart Claude Code (or open `/theme` and pick "Rainbow Week").

## Palettes

Monday → Sunday. Every palette walks the same hue order in its own key.

| | Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|---|
| **Morandi** (default) | `#C2A2A0` dusty rose | `#C4A992` clay | `#BDB58F` wheat | `#9FB49B` sage | `#9DACBD` mist blue | `#9C97B5` dusty indigo | `#B29BB4` grey violet |
| **Monet** | `#D9AFAE` water-lily | `#D8AC96` sunrise | `#CFC08D` hay | `#A5C3A2` iris | `#A6BCD6` Giverny blue | `#A9A2CF` dusk | `#C3A5D4` wisteria |
| **Vermeer** | `#AE7269` ochre red | `#BF9469` ochre | `#B9AA6B` olive gold | `#77A48D` celadon | `#6889AF` Delft blue | `#767AA9` blue violet | `#977FA0` pearl violet |
| **Song porcelain** | `#AF6874` rouge | `#B08164` ochre | `#B9A156` rattan yellow | `#789A86` bamboo | `#7199AD` sky blue | `#666E9C` indigo | `#967B99` lotus violet |

Shimmer partners (`claudeShimmer`, `promptBorderShimmer`) are derived automatically by lifting the main colour 22% toward white.

## Commands

- `/rainbow` — today's colour, active palette, on/off state
- `/rainbow palette` — list the four palettes, each with a true-colour dot preview
- `/rainbow palette morandi|monet|vermeer|song` — switch palette, applied immediately
- `/rainbow on` / `/rainbow off` — toggle the rotation and restore the previous theme

## How it works

Claude Code's `theme` setting only accepts built-in presets, so a plugin cannot switch a custom theme through `config.set`. This mod instead:

1. writes `~/.claude/themes/rainbow-week.json` — a custom theme whose `overrides` hold today's colour, inheriting `base` from whatever preset you had (light stays light);
2. points `theme` in `~/.claude/settings.json` at `custom:rainbow-week`;
3. re-applies just past local midnight, so a long-running session turns over by itself. The theme directory is watched, so the file rewrite repaints without a restart.

Your previous theme is remembered and restored by `/rainbow off`.

## Notes

- Writes only `~/.claude/themes/rainbow-week.json` and the `theme` key of `~/.claude/settings.json`.
- Requires a Claude Code build with custom themes (2.1.118+).
- Colour dots in command output use 24-bit ANSI escapes; terminals without true colour show them as plain white.