Examine source code of Snapchat Chrome UA

{
  "manifest_version": 2,
  "name": "Snapchat Chrome UA",
  "version": "1.0",
  "description": "Sets Chrome user agent when visiting snapchat.com",
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "*://*.snapchat.com/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "Snapchat Chrome UA"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "snapchat-chrome-ua@extension",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}