Examine source code of Obliterate Curves

{
  "manifest_version": 2,
  "name": "Obliterate Curves",
  "description": "Simple extension that removes rounded edges off the entire Internet.",
  "version": "1.0.2",
  "author": "ArkyonVeil",
  "icons": {
    "16": "icons/logo_16.png",
    "48": "icons/logo_48.png",
    "128": "icons/logo_128.png"
  },
  "browser_action": {
    "default_icon": "icons/logo_48.png"
  },
  "permissions": [
    "<all_urls>"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "squarify.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "obliteratecurves@arkyonveil"
    }
  }
}