Examine source code of Return Roblox Friends

{
  "manifest_version": 2,
  "name": "Return Roblox Friends",
  "version": "1.0",
  "description": "Rename 'Connections' back to 'Friends' on Roblox",
  "permissions": [
    "activeTab"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.roblox.com/*",
        "*://roblox.com/*"
      ],
      "js": [
        "script.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "icons": {
    "128": "icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{28e87c56-619f-4388-b017-dc096f44eae9}"
    }
  }
}