Examine source code of My Sebastian

{
  "name": "My Sebastian",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "Sebastian 1.jpeg"
    },
    "colors": {
      "toolbar": "rgba(15, 13, 13, 1)",
      "toolbar_field": "rgba(232, 14, 14, 1)",
      "toolbar_field_text": "rgba(0, 0, 0, 0.59)",
      "frame": "rgba(34, 80, 179, 1)",
      "tab_background_text": "rgba(163, 13, 13, 1)",
      "bookmark_text": "rgba(235, 5, 5, 1)"
    }
  }
}