Examine source code of Dracukeo

{
  "name": "Dracukeo",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "135.jpg"
    },
    "colors": {
      "frame": "rgba(68, 71, 90, 1)",
      "tab_background_text": "rgba(68, 71, 90, 1)",
      "toolbar": "rgba(68, 71, 90, 1)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(189, 147, 249, 1)",
      "toolbar_field_text": "rgba(68, 71, 90, 1)",
      "tab_line": "rgba(189, 147, 249, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f0d8fcde-dca3-4497-a286-a958cb8b7cc3}"
    }
  }
}