Examine source code of Deep Focus

{
  "manifest_version": 2,
  "name": "Deep Focus",
  "version": "1.0.0",
  "description": "A productivity extension to minimize distractions and manage work sessions",
  "permissions": [
    "storage",
    "alarms",
    "notifications",
    "tabs",
    "webRequest",
    "webRequestBlocking",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "sounds/whitenoise.mp3",
    "sounds/rain.mp3",
    "sounds/forest.mp3",
    "sounds/lofi.mp3",
    "sounds/thunder.mp3",
    "sounds/notification.mp3",
    "pages/blocked.html",
    "css/blocked-page.css",
    "js/blocked-page.js",
    "icons/icon128.png"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "deep-focus@example.com",
      "strict_min_version": "109.0"
    }
  }
}