Examine source code of Whitechapel

{
  "theme": {
    "images": {
      "theme_frame": "whitechapelpersona.jpg"
    },
    "colors": {
      "frame": "#595656",
      "tab_background_text": "#595656"
    }
  },
  "version": "2.0",
  "name": "Whitechapel",
  "manifest_version": 2,
  "description": "One of my favorite bands"
}