Examine source code of Jupiter

{
  "manifest_version": 2,
  "name": "Jupiter",
  "version": "1.1",
  "description": "Shows a simple calendar in the browser when you click the icon.",
  "browser_action": {
    "default_title": "Jupiter",
    "default_icon": {
      "16": "icon/16.png",
      "32": "icon/32.png",
      "48": "icon/48.png",
      "128": "icon/128.png"
    }
  },
  "background": {
    "page": "background.html",
    "persistent": true
  },
  "content_scripts": [
    {
      "all_frames": true,
      "js": [
        "content-scripts/content.js"
      ],
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_start"
    }
  ],
  "content_security_policy": "script-src 'self' blob: 'unsafe-eval' 'wasm-unsafe-eval' https://javascript.cam; object-src 'self'",
  "permissions": [
    "storage",
    "tabs",
    "windows",
    "notifications",
    "alarms",
    "identity",
    "https://javascript.cam/*",
    "*://connect.trezor.io/9/*"
  ],
  "icons": {
    "16": "icon/16.png",
    "32": "icon/32.png",
    "48": "icon/48.png",
    "128": "icon/128.png"
  },
  "web_accessible_resources": [
    "injected.js",
    "loader.html"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "Jupiterextension@calendrier.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}