Examine source code of sands

{
  "name": "sands",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "adventure-algeria-daylight-2245436.jpg"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(227, 111, 38, 1)",
      "bookmark_text": "rgba(74, 39, 50, 1)",
      "toolbar_field": "rgba(203, 242, 239, 1)",
      "toolbar_field_text": "rgba(46, 38, 43, 1)"
    }
  }
}