Examine source code of Dynamic Calendar Basic

{
  "manifest_version": 2,
  "name": "Dynamic Calendar Basic",
  "version": "1.0",
  "description": "We will be designing and implementing a straightforward yet effective dynamic calendar, offering seamless month navigation and quick access to the current month",
  "permissions": [],
  "browser_action": {
    "default_popup": "index.html",
    "default_icon": {
      "128": "images/calender-logo.png"
    }
  },
  "icons": {
    "128": "images/calender-logo.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c57393bf-cd76-4558-bbd1-0c0b56d2445c}"
    }
  }
}