Examine source code of Smiling cutie

{
  "name": "Smiling cutie",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "ezgif.com-apng-to-gif.gif"
    },
    "colors": {
      "frame": "rgba(255, 253, 250, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(255, 190, 220, 0.25)",
      "bookmark_text": "rgba(59, 102, 189, 1)",
      "toolbar_field": "rgba(255, 255, 255, 0.1)",
      "tab_line": "rgba(255, 224, 237, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{a467860a-84f3-4b64-ad91-1e0658e27a7c}"
    }
  }
}