Examine source code of Bag End

{
  "name": "Bag End",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "bag end cartoon 2.jpg"
    },
    "colors": {
      "frame": "rgba(65, 235, 111, 1)",
      "tab_background_text": "rgba(255, 191, 0, 1)",
      "toolbar": "rgba(128, 214, 94, 1)",
      "bookmark_text": "rgba(255, 192, 31, 1)",
      "toolbar_field": "rgba(177, 255, 143, 1)",
      "toolbar_field_text": "rgba(235, 121, 80, 1)"
    }
  }
}