Examine source code of Kontest Reminder

{
  "name": "Kontest Reminder",
  "version": "1.0.9",
  "description": "This extension will never let you forget about any coding contest",
  "homepage_url": "https://nisarg0.github.io/Kontest-Reminder/",
  "manifest_version": 2,
  "applications": {
    "gecko": {
      "id": "kontest_reminder@nisarg_0",
      "strict_min_version": "67.0"
    }
  },
  "icons": {
    "48": "Assets/card.png"
  },
  "permissions": [
    "alarms"
  ],
  "options_ui": {
    "browser_style": true,
    "page": "options.html"
  },
  "background": {
    "scripts": [
      "browser-polyfill.js",
      "background.bundle.js"
    ]
  },
  "browser_action": {
    "default_icon": "Assets/card.png",
    "default_title": "Click here to see your Coding Schedule.",
    "default_popup": "popup.html"
  },
  "developer": {
    "name": "Nisarg Gogate",
    "url": "https://github.com/nisarg0"
  }
}