Examine source code of More Maps for Strava

{
  "manifest_version": 3,
  "name": "More Maps for Strava",
  "version": "2.0.0",
  "description": "Adds additional map layers and panorama mode to Strava.",
  "browser_specific_settings": {
    "gecko": {
      "id": "moremaps@mstrlc.eu",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "icons": {
    "48": "icons/icon.png",
    "128": "icons/icon.png"
  },
  "host_permissions": [
    "https://*.google.com/"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.strava.com/*"
      ],
      "js": [
        "browser-polyfill.js",
        "constants.js",
        "strings.js",
        "map-modifier.js"
      ],
      "run_at": "document_start"
    }
  ],
  "sandbox": {
    "pages": [
      "panorama.html"
    ]
  },
  "content_security_policy": {
    "sandbox": "sandbox allow-scripts allow-forms allow-popups allow-modals; script-src 'self' https://api.mapy.cz https://api.mapy.com https://maps.googleapis.com https://maps.google.com https://*.google.com https://*.googleusercontent.com; style-src 'self' 'unsafe-inline' https://api.mapy.cz https://fonts.googleapis.com; img-src 'self' data: https:; font-src 'self' data: https://fonts.gstatic.com; connect-src 'self' https:;"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "constants.js",
        "strings.js",
        "inject.js",
        "panorama.js",
        "panorama.html",
        "panorama-sandbox.js",
        "panorama-mapy-sdk.js",
        "assets/mapycom/*",
        "assets/osm/*",
        "assets/google/*",
        "icons/*"
      ],
      "matches": [
        "*://*.strava.com/*"
      ]
    }
  ]
}