Examine source code of Pumpkin Pumpkin

{
  "name": "Pumpkin Pumpkin",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "HD_transparent_picture.png"
    },
    "colors": {
      "frame": "rgba(32, 224, 3, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(255, 121, 3, 1)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(0, 0, 0, 1)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{a6bbb7b0-5ce7-43dd-8306-ee835ad8132f}"
    }
  }
}