Examine source code of Blurred Roses

{
  "name": "Blurred Roses",
  "manifest_version": 2,
  "version": "4.0",
  "theme": {
    "images": {
      "theme_frame": "rose-pattern.png"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(255, 255, 255, 0.64)",
      "bookmark_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(15, 117, 115, 0.88)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b30db28c-ab66-4792-915c-2217b1270f86}"
    }
  }
}