Examine source code of Powerpuff

{
  "name": "Powerpuff",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "download (1).jpg"
    },
    "colors": {
      "frame": "rgba(235, 50, 192, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(174, 78, 230, 1)",
      "bookmark_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(189, 99, 199, 1)",
      "toolbar_field_text": "rgba(237, 237, 237, 1)",
      "tab_line": "rgba(75, 35, 250, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f27a814d-06d8-421f-a8db-7928bd4e956e}"
    }
  }
}