Examine source code of BOTC Friends

{
  "manifest_version": 3,
  "name": "BOTC Friends",
  "version": "0.4.4",
  "description": "Allows setting friends and block lists for the Blood on the Clocktower official app.",
  "icons": {
    "48": "assets/icons/botc-friends-48.png",
    "96": "assets/icons/botc-friends-96.png",
    "192": "assets/icons/botc-friends-192.png"
  },
  "action": {
    "default_icon": {
      "48": "assets/icons/botc-friends-48.png"
    },
    "default_title": "BOTC Friends",
    "default_popup": "index.html"
  },
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "*://botc.app/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://botc.app/*"
      ],
      "js": [
        "background.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "assets/icons/botc-friends-48.png",
        "assets/icons/botc-friends-96.png",
        "assets/icons/botc-friends-192.png"
      ],
      "matches": [
        "*://botc.app/*"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "botc-friends@calebmckay.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}