Examine source code of Stack Overflow Prettifier

{
  "manifest_version": 2,
  "name": "StackOverflow/Exchange Prettifier",
  "version": "1.2",
  "description": "Ball out by blocking out all the unnecessary garbage from StackOverflow.",
  "icons": {
    "96": "icons/stack_prettifier_96.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.stackoverflow.com/*",
        "*://*.stackexchange.com/*",
        "*://*.superuser.com/*",
        "*://*.serverfault.com/*",
        "*://*.askubuntu.com/*"
      ],
      "js": [
        "stack_prettifier.js"
      ]
    }
  ]
}