Examine source code of Esthetic clouds

{
  "name": "Esthetic clouds",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "mountains.jpg"
    },
    "colors": {
      "frame": "rgba(247, 247, 250, 1)",
      "tab_background_text": "rgba(18, 17, 17, 1)",
      "toolbar": "rgba(237, 245, 244, 1)",
      "bookmark_text": "rgba(15, 13, 15, 1)",
      "toolbar_field": "rgba(243, 245, 237, 1)",
      "toolbar_field_text": "rgba(14, 15, 15, 1)",
      "tab_line": "rgba(242, 14, 14, 1)"
    }
  }
}