Examine source code of Custom Key Binding

{
  "icons": {
    "16": "icon16.plasmo.6c567d50.png",
    "32": "icon32.plasmo.76b92899.png",
    "48": "icon48.plasmo.aced7582.png",
    "64": "icon64.plasmo.8bb5e6e0.png",
    "128": "icon128.plasmo.3c1ed2d2.png"
  },
  "manifest_version": 3,
  "action": {
    "default_icon": {
      "16": "icon16.plasmo.6c567d50.png",
      "32": "icon32.plasmo.76b92899.png",
      "48": "icon48.plasmo.aced7582.png",
      "64": "icon64.plasmo.8bb5e6e0.png",
      "128": "icon128.plasmo.3c1ed2d2.png"
    },
    "default_popup": "popup.html"
  },
  "version": "0.0.2",
  "author": "nplongquan@gmail.com@gmail.com",
  "name": "Custom Key Binding",
  "description": "Enhance your browsing experience by using personalized keyboard shortcuts for each website.",
  "options_ui": {
    "page": "options.html",
    "open_in_tab": false
  },
  "permissions": [
    "storage"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "addKeys.5ba074d3.js"
      ],
      "css": []
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "selector.4c06ec74.js"
      ],
      "css": []
    }
  ],
  "host_permissions": [
    "https://*/*"
  ],
  "commands": {
    "_execute_action": {
      "suggested_key": {
        "default": "Alt+S"
      }
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "nplongquan@gmail.com"
    }
  }
}