Examine source code of Easter Bunnies v.2

{
  "name": "Easter Bunnies v.2",
  "manifest_version": 2,
  "version": "4.0",
  "theme": {
    "images": {
      "theme_frame": "BlueBunnies.jpg"
    },
    "colors": {
      "frame": "rgba(141, 157, 232, 1)",
      "tab_background_text": "rgba(6, 0, 117, 1)",
      "toolbar": "rgba(255, 255, 255, 0.19)",
      "bookmark_text": "rgba(5, 0, 92, 1)",
      "toolbar_field": "rgba(166, 216, 245, 0)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)"
    }
  }
}