Examine source code of Cartoon Dogs

{
  "theme": {
    "images": {
      "theme_frame": "cartoon-dogs_header.jpg"
    },
    "colors": {
      "frame": "#22cdff",
      "tab_background_text": "#0618bf"
    }
  },
  "version": "2.0",
  "name": "Cartoon Dogs",
  "manifest_version": 2,
  "description": "An adorable collection of cartoon style dogs. This collection of mostly small dogs includes a Schnuazer, Chinese Crested, West Highland Terrier, Bulldog, Cardigan Welsh Corgi, Bull Terrier, Schnoodle, Boston Terrier and a French Bulldog"
}