Examine source code of Remove Roblox Ads

{
  "manifest_version": 2,
  "name": "Remove Roblox Ads",
  "version": "1.0",
  "description": "A light weight extension that removes Roblox adverts/sponsorships while maintaining a clean design.",
  "content_scripts": [
    {
      "matches": [
        "https://*.roblox.com/*"
      ],
      "js": [
        "index.js"
      ]
    }
  ]
}