Examine source code of Newgrounds

{
  "theme": {
    "images": {
      "theme_frame": "ngpersona.png"
    },
    "colors": {
      "frame": "#575757",
      "tab_background_text": "#666d7a"
    }
  },
  "version": "2.0",
  "name": "Newgrounds",
  "manifest_version": 2,
  "description": "A Newgrounds persona, for all you Newgrounders."
}