Examine source code of Facebook Schedule Clicker

{
  "manifest_version": 2,
  "name": "Facebook Scheduler Clicker",
  "version": "1.0",
  "description": "Clicks the Schedule button on Facebook/Meta when Alt+M is pressed.",
  "permissions": [
    "activeTab",
    "tabs"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "commands": {
    "click-schedule": {
      "suggested_key": {
        "default": "Alt+M"
      },
      "description": "Click the Schedule button"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.facebook.com/*",
        "*://*.meta.com/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "browser_action": {
    "default_title": "FB Scheduler Clicker"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e6333265-8b9f-4554-9fae-9d7a151a719a}"
    }
  }
}