Examine source code of Blocker for Wix ads

{
  "manifest_version": 2,
  "name": "Wix Ad Block",
  "version": "3.2resigned1",
  "description": "Block Wix ads!",
  "icons": {
    "48": "icons/ads48.png",
    "96": "icons/ads96.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.wixsite.com/*"
      ],
      "js": [
        "block.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "@kikikokicicidada"
    }
  }
}