Examine source code of artelier_tab

{
  "manifest_version": 2,
  "name": "artelier:tab",
  "version": "1.0.4",
  "description": "Experience masterpieces from world-renowned museums in every new tab",
  "permissions": [
    "https://api.artic.edu/*",
    "https://www.artic.edu/*"
  ],
  "chrome_url_overrides": {
    "newtab": "src/html/newtab.html"
  },
  "content_security_policy": "default-src 'self' https://cdnjs.cloudflare.com https://fonts.googleapis.com https://fonts.gstatic.com; img-src 'self' https://www.artic.edu https://api.artic.edu data: blob:; connect-src 'self' https://api.artic.edu https://www.artic.edu; script-src 'self' 'unsafe-inline' https://cdnjs.cloudflare.com; style-src 'self' https://fonts.googleapis.com 'unsafe-inline'",
  "browser_specific_settings": {
    "gecko": {
      "id": "artelier-tab@arteliertab.com",
      "strict_min_version": "58.0"
    }
  }
}