Examine source code of Fire Angel by M♥Donna

{
  "name": "Fire Angel by M♥Donna",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "Fire Angel (Custom).jpg"
    },
    "colors": {
      "frame": "rgba(102, 30, 34, 1)",
      "tab_background_text": "rgba(255, 222, 54, 1)",
      "toolbar": "rgba(102, 30, 33, 0)",
      "bookmark_text": "rgba(255, 221, 51, 1)",
      "toolbar_field": "rgba(102, 30, 33, 0.06)",
      "toolbar_field_text": "rgba(255, 229, 97, 1)",
      "tab_line": "rgba(255, 229, 97, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{7a47d019-ee18-4833-a22f-8c2fde546b02}"
    }
  }
}