Examine source code of scarameow

{
  "name": "scarameow",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "561ab8a52909b058f8ed4522b95f9775.jpg"
    },
    "colors": {
      "frame": "rgba(29, 60, 133, 1)",
      "tab_background_text": "rgba(7, 43, 128, 1)",
      "toolbar": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{af9e5eee-d846-45d6-a15c-b3d611bd5a5e}"
    }
  }
}