Sync Omarchy themes to Claude Code (#6480)

* Sync Omarchy themes to Claude Code

Claude Code 2.1.118 added custom themes as JSON files in
~/.claude/themes, watched and hot-reloaded, so this follows the same
shape as the Pi integration (da53c0ff, bin/omarchy-theme-set-pi).

A claude.json template renders from each theme's colors.toml — no
per-theme files, so every stock and community theme is covered — and
omarchy-theme-set-claude copies the result into
~/.claude/themes/omarchy.json on theme switch, retinting running
sessions without a restart.

The theme just appears as "Omarchy" in the /theme picker, and picking
it once (or running omarchy-theme-set-claude --activate) makes every
future theme switch carry Claude Code along. No ~/.claude directory,
no-op.

* Respect custom Claude config directory

---------

Co-authored-by: David Heinemeier Hansson <david@hey.com>

bin/omarchy-theme-set

@@ -197,6 +197,7 @@ post_theme_commands=(
   omarchy-theme-set-tmux
   omarchy-theme-set-gnome
   omarchy-theme-set-pi
+  omarchy-theme-set-claude
   omarchy-theme-set-browser
   omarchy-theme-set-vscode
   omarchy-theme-set-obsidian

bin/omarchy-theme-set-claude

@@ -0,0 +1,74 @@
+#!/bin/bash
+
+# omarchy:summary=Sync the generated Omarchy theme to Claude Code
+# omarchy:args=[--activate]
+# omarchy:hidden=true
+
+set -euo pipefail
+
+CLAUDE_SOURCE_PATH="$HOME/.local/state/omarchy/current/theme/claude.json"
+CLAUDE_CONFIG_DIR="${CLAUDE_CONFIG_DIR:-$HOME/.claude}"
+CLAUDE_THEME_PATH="$CLAUDE_CONFIG_DIR/themes/omarchy.json"
+CLAUDE_SETTINGS_PATH="$CLAUDE_CONFIG_DIR/settings.json"
+CLAUDE_ACTIVATE=0
+
+usage() {
+  echo "Usage: omarchy-theme-set-claude [--activate]"
+}
+
+for arg in "$@"; do
+  case "$arg" in
+    --activate)
+      CLAUDE_ACTIVATE=1
+      ;;
+    -h | --help)
+      usage
+      exit 0
+      ;;
+    *)
+      usage >&2
+      exit 1
+      ;;
+  esac
+done
+
+if [[ ! -f $CLAUDE_SOURCE_PATH ]]; then
+  if (( CLAUDE_ACTIVATE == 1 )); then
+    echo "Claude Code theme source missing: $CLAUDE_SOURCE_PATH" >&2
+    echo "Run omarchy-theme-refresh after selecting an Omarchy theme." >&2
+    exit 1
+  fi
+
+  exit 0
+fi
+
+if (( CLAUDE_ACTIVATE == 0 )) && [[ ! -d $CLAUDE_CONFIG_DIR ]]; then
+  exit 0
+fi
+
+write_setting_theme() {
+  local tmp
+
+  if [[ -f $CLAUDE_SETTINGS_PATH ]]; then
+    tmp=$(mktemp "$CLAUDE_SETTINGS_PATH.XXXXXX")
+    jq '.theme = "custom:omarchy"' "$CLAUDE_SETTINGS_PATH" >"$tmp"
+    mv "$tmp" "$CLAUDE_SETTINGS_PATH"
+  else
+    cat >"$CLAUDE_SETTINGS_PATH" <<EOF
+{
+  "theme": "custom:omarchy"
+}
+EOF
+  fi
+}
+
+# Claude Code watches ~/.claude/themes and hot-reloads the file on change,
+# so running sessions retint without a restart.
+mkdir -p "$(dirname "$CLAUDE_THEME_PATH")"
+tmp=$(mktemp "$CLAUDE_THEME_PATH.XXXXXX")
+cp "$CLAUDE_SOURCE_PATH" "$tmp"
+mv "$tmp" "$CLAUDE_THEME_PATH"
+
+if (( CLAUDE_ACTIVATE == 1 )); then
+  write_setting_theme
+fi