script: refactor change-colortheme

niri/apply-color

@@ -0,0 +1,13 @@
+#!/bin/sh
+
+path=$(dirname "$(readlink -f "$0")")
+. "$path"/../.utils/apply-color-parse-arg
+
+file="$path"/config.kdl
+
+sed -i -E "s/^(\s*active-color\s+\"#)([0-9A-Fa-f]{6})(\")/\1${colorHex}\3/" "$file" || {
+    log_error "Failed to edit ${file}"
+    exit 1
+}
+
+log_success "niri"