Examine source code of Rainbow Lights by MaDonna

{
  "name": "Rainbow Lights by MaDonna",
  "manifest_version": 2,
  "version": "4.0",
  "theme": {
    "images": {
      "theme_frame": "RainbowLightsH.jpg"
    },
    "colors": {
      "frame": "rgba(166, 64, 76, 1)",
      "tab_background_text": "rgba(120, 233, 255, 1)",
      "toolbar": "rgba(0, 0, 0, 0)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(166, 63, 75, 0.11)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{56165b6b-ed9e-45cb-a020-03f58851c0ee}"
    }
  }
}