Examine source code of Autumn Gingham

{
  "name": "Autumn Gingham",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "striped-brown-white-checker-gingham-1920x1080-c2-ffffff-cd853f-l-47-a-180-f-12.png"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(210, 144, 80, 1)",
      "toolbar": "rgba(220, 169, 120, 1)",
      "bookmark_text": "rgba(166, 113, 60, 1)",
      "toolbar_field_text": "rgba(166, 113, 60, 1)"
    }
  }
}