consistent styling

basic/.config/themes/scripts/new-theme.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+# Scaffold a new theme directory (basic/.config/themes/scripts/new-theme.sh).
+#
+# Usage: new-theme.sh <theme-id>   e.g. new-theme.sh rose-pine-moon
+#
+# Copies themes/catppuccin-mocha as a template. Afterwards:
+#   1. Replace every palette value in the new directory.
+#   2. Add one row to themes/registry.conf.
+#   3. Run scripts/switch-theme.sh <theme-id> to try it.
+
+set -euo pipefail
+
+REPO_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/../../../.." && pwd)"
+THEMES_DIR="$REPO_ROOT/basic/.config/themes/themes"
+
+[[ $# -eq 1 ]] || { echo "usage: $(basename "$0") <theme-id>" >&2; exit 1; }
+theme_id="$1"
+if [[ ! "$theme_id" =~ ^[a-z0-9][a-z0-9-]*$ ]]; then
+    echo "error: invalid theme-id '$theme_id'" >&2
+    exit 1
+fi
+[[ -e "$THEMES_DIR/$theme_id" ]] && { echo "error: $theme_id already exists" >&2; exit 1; }
+
+cp -r "$THEMES_DIR/catppuccin-mocha" "$THEMES_DIR/$theme_id"
+echo "scaffolded $THEMES_DIR/$theme_id"
+echo "next: replace the palette values, add a registry.conf row, run switch-theme.sh $theme_id"