Examine source code of A Dancing Rainbow

{
  "name": "A Dancing Rainbow",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "A Dancing Rainbow.jpg"
    },
    "colors": {
      "frame": "rgba(10, 10, 10, 1)",
      "tab_background_text": "rgba(192, 222, 240, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{04d0dc95-4447-4fb9-8c8a-9c6430d25df3}"
    }
  }
}