Examine source code of Socius Learning Sync

{
  "manifest_version": 3,
  "name": "Socius Learning Sync",
  "version": "1.3",
  "description": "Add the Socius Learning Sync extension to your browser",
  "action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "icons/icon-16.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    }
  },
  "permissions": [
    "tabs",
    "storage",
    "contextMenus",
    "notifications"
  ],
  "host_permissions": [
    "http://127.0.0.1:8765/*",
    "http://localhost:8765/*",
    "https://api.socius.ws/*",
    "https://socius.ws/*",
    "https://*.socius.ws/*"
  ],
  "optional_host_permissions": [
    "http://localhost:8010/*",
    "http://localhost:3000/*",
    "http://localhost:8001/*"
  ],
  "externally_connectable": {
    "matches": [
      "https://socius.ws/*",
      "https://*.socius.ws/*",
      "http://localhost:3000/*",
      "http://localhost:8001/*"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://socius.ws/*",
        "https://*.socius.ws/*",
        "http://localhost:3000/*",
        "http://localhost:8001/*"
      ],
      "js": [
        "content-scripts/auth-bridge.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "commands": {
    "capture-current-page": {
      "suggested_key": {
        "default": "Alt+Shift+C",
        "mac": "Alt+Shift+C"
      },
      "description": "Capture current page with Socius"
    }
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "socius-learning-sync@socius.ws",
      "strict_min_version": "121.0",
      "data_collection_permissions": {
        "required": [
          "authenticationInfo",
          "websiteActivity"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "121.0"
    }
  },
  "background": {
    "service_worker": "background.js",
    "type": "module",
    "scripts": [
      "background.js"
    ]
  }
}