Examine source code of DFCraft - Deep Focus Timer

{
  "manifest_version": 2,
  "name": "DFCraft - Deep Focus Timer",
  "version": "1.0.0",
  "description": "Craft your focus with Pomodoro timer, todos, and distraction blocking",
  "icons": {
    "16": "icons/CARACTER-16.png",
    "48": "icons/CARACTER-48.png",
    "128": "icons/CARACTER-128.png"
  },
  "browser_action": {
    "default_popup": "src/popup/popup.html",
    "default_title": "DFCraft"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "permissions": [
    "storage",
    "notifications",
    "alarms",
    "activeTab",
    "offscreen",
    "tabs"
  ],
  "options_page": "src/options/options.html",
  "web_accessible_resources": [
    "staticPages/blocked.html",
    "sounds/*.wav",
    "sounds/*.mp3",
    "offscreen.html",
    "offscreen.js",
    "fonts/*.ttf"
  ],
  "options_ui": {
    "page": "src/options/options.html",
    "open_in_tab": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "notyet@fackmail.com",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}