Examine source code of Mealie Context Menu

{
  "manifest_version": 2,
  "name": "Mealie",
  "version": "1.0.1",
  "description": "Connects with a local Mealie instance.",
  "icons": {
    "48": "icons/48.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "webRequest",
    "*://*/*",
    "contextMenus",
    "storage",
    "activeTab"
  ],
  "commands": {
    "activateClick": {
      "suggested_key": {
        "default": "Ctrl+Alt+M"
      },
      "description": "Activates 'Clicked' function"
    }
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{a4f981c3-4118-4310-8823-400615e380a2}"
    }
  }
}