Examine source code of Flowers 2

{
  "name": "Flowers 2",
  "manifest_version": 2,
  "version": "5.0",
  "theme": {
    "images": {
      "theme_frame": "Flowers2H.jpg"
    },
    "colors": {
      "frame": "rgba(64, 140, 199, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(0, 0, 0, 0)",
      "bookmark_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(64, 138, 199, 0.09)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)",
      "tab_line": "rgba(0, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{99a842a7-fa94-43f4-8aff-e4acf93cdb04}"
    }
  }
}