Examine source code of Frank the bunny

{
  "theme": {
    "images": {
      "theme_frame": "frankthebunnyheader.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Frank the bunny",
  "manifest_version": 2,
  "description": "Frank the bunny-\n\nWhy are you wearing that stupid man suit?\n\nin 28 days, 6 hours, 42 minutes and 12 seconds, the world will end."
}