Examine source code of McDonalds Theme

{
  "name": "McDonalds Theme",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "mcdonalds.jpg"
    },
    "colors": {
      "frame": "rgba(209, 41, 35, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(255, 162, 0, 1)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(255, 255, 255, 1)",
      "toolbar_field_text": "rgba(209, 41, 35, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{7f7a4900-eb8c-4238-adb5-0f226a062198}"
    }
  }
}