Examine source code of dark berries

{
  "name": "dark berries",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "dg.jpg"
    },
    "colors": {
      "frame": "rgba(3, 3, 3, 1)",
      "tab_background_text": "rgba(113, 194, 201, 1)",
      "toolbar": "rgba(19, 16, 33, 1)",
      "bookmark_text": "rgba(98, 99, 117, 1)",
      "toolbar_field": "rgba(163, 219, 230, 1)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)"
    }
  }
}