Examine source code of Country Fox by M♥Donna

{
  "name": "A Country Fox by M♥Donna",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "A Country Fox.jpg"
    },
    "colors": {
      "frame": "rgba(219, 232, 241, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(220, 233, 242, 0)",
      "bookmark_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(220, 233, 242, 0.11)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)",
      "tab_line": "rgba(143, 59, 29, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{fc10296b-3e40-4a7a-8f07-f0541ad5499a}"
    }
  }
}