Examine source code of Shiori

{
  "manifest_version": 3,
  "name": "Shiori",
  "description": "A beautifully simple read-it-later app.",
  "options_page": "src/pages/options/index.html",
  "action": {
    "default_icon": {
      "32": "icon-32.png"
    }
  },
  "icons": {
    "128": "icon-128.png"
  },
  "permissions": [
    "activeTab",
    "storage",
    "identity",
    "scripting",
    "contextMenus"
  ],
  "host_permissions": [
    "https://www.shiori.sh/*"
  ],
  "commands": {
    "quick-save": {
      "suggested_key": {
        "default": "Ctrl+Shift+S",
        "mac": "Command+Shift+S"
      },
      "description": "Quick save current page to Shiori"
    }
  },
  "background": {
    "scripts": [
      "service-worker-loader.js"
    ],
    "type": "module"
  },
  "web_accessible_resources": [
    {
      "matches": [],
      "resources": [
        "icon-128.png",
        "icon-32.png"
      ]
    }
  ],
  "version": "2.2.2",
  "browser_specific_settings": {
    "gecko": {
      "id": "clippy@clippy.run",
      "data_collection_permissions": {
        "required": [
          "browsingActivity",
          "authenticationInfo"
        ],
        "optional": []
      }
    }
  }
}