Examine source code of No IE-ing

{
  "theme": {
    "images": {
      "theme_frame": "top463.png"
    },
    "colors": {
      "frame": "#8a8a8a",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "No IE-ing",
  "manifest_version": 2,
  "description": "Do what the persona tells you to do :P"
}