Examine source code of Crazy Rabbit

{
  "theme": {
    "images": {
      "theme_frame": "maxhead.jpg"
    },
    "colors": {
      "frame": "#808080",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Crazy Rabbit",
  "manifest_version": 2,
  "description": "\"Max\" drawn by myself.\nMax is a character from the Sam & Max series\n\nI drew this image myself\n(It was denied on this website wrongly yesterday, even though I made the content myself 100%, the character is based on Max from Sam & Max, but I put in a good 3 hours in making this persona)"
}