Examine source code of Sheep sleeping

{
  "name": "Sheep asleep",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "2561P013-21.jpg"
    },
    "colors": {
      "frame": "rgba(255, 255, 255, 0)",
      "tab_background_text": "rgba(69, 30, 55, 1)",
      "toolbar": "rgba(204, 174, 196, 0)",
      "bookmark_text": "rgba(156, 100, 137, 1)",
      "toolbar_field": "rgba(161, 122, 148, 0.89)",
      "toolbar_field_text": "rgba(31, 28, 28, 1)"
    }
  }
}