Examine source code of The Flower Bed

{
  "name": "The Flower Bed",
  "manifest_version": 2,
  "version": "4.0",
  "theme": {
    "images": {
      "theme_frame": "TheFlowerBedH.jpg"
    },
    "colors": {
      "frame": "rgba(98, 124, 153, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(98, 123, 153, 0)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(98, 123, 153, 0.08)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{483616f7-d79d-4585-b17d-8e01a61f4ce9}"
    }
  }
}