Examine source code of Pomodoro Timer

{
  "manifest_version": 2,
  "name": "Pomodoro Timer",
  "version": "1.5.0",
  "description": "A simple Pomodoro timer to boost your productivity with 25-minute work sessions and 5-minute breaks.",
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  },
  "permissions": [
    "notifications",
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "pomodoro-timer-open-source@someone.com",
      "strict_min_version": "58.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "browser_action": {
    "default_icon": {
      "48": "icons/icon-48.png",
      "96": "icons/icon-96.png"
    },
    "default_title": "Pomodoro Timer",
    "default_popup": "popup/popup.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "developer": {
    "name": "Naman Saini",
    "url": "https://github.com/namans4ini"
  }
}