Examine source code of Family Lost by MaDonna

{
  "name": "Family Lost by MaDonna",
  "manifest_version": 2,
  "version": "4.0",
  "theme": {
    "images": {
      "theme_frame": "FamilyLostH.jpg"
    },
    "colors": {
      "frame": "rgba(148, 141, 140, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(150, 143, 141, 0)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(122, 120, 120, 0.08)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{61e9e23b-4802-46a1-b2cb-96f46294e782}"
    }
  }
}