Examine source code of Break Buddy

{
  "manifest_version": 3,
  "name": "Break Buddy",
  "short_name": "Break Buddy",
  "version": "1.3.0",
  "default_locale": "en",
  "description": "Cute animals remind you to take healthy screen breaks. Fun, gentle, and privacy-first.",
  "icons": {
    "16": "assets/icons/icon-16.png",
    "32": "assets/icons/icon-32.png",
    "48": "assets/icons/icon-48.png",
    "128": "assets/icons/icon-128.png"
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "assets/icons/icon-16.png",
      "32": "assets/icons/icon-32.png",
      "48": "assets/icons/icon-48.png",
      "128": "assets/icons/icon-128.png"
    },
    "default_title": "Break Buddy"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle",
      "all_frames": false
    }
  ],
  "permissions": [
    "storage",
    "alarms",
    "tabs",
    "activeTab",
    "scripting"
  ],
  "optional_permissions": [
    "notifications"
  ],
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "web_accessible_resources": [
    {
      "resources": [
        "overlay.html",
        "party.html",
        "animals/*.svg",
        "assets/*"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "break-buddy@breakbuddy.app",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": [
          "technicalAndInteraction"
        ]
      }
    }
  }
}