Examine source code of Loftie Focus

{
  "manifest_version": 2,
  "name": "Loftie Focus",
  "description": "Build better digital habits and take back your attention. Part of the Loftie+ system. Free.",
  "version": "1.0.3",
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "permissions": [
    "declarativeNetRequest",
    "declarativeNetRequestFeedback",
    "storage",
    "alarms",
    "tabs",
    "activeTab",
    "<all_urls>"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "focus@byloftie.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "web_accessible_resources": [
    "blocked.html",
    "fonts/*",
    "icons/*",
    "images/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "Loftie Focus",
    "default_popup": "popup.html"
  },
  "options_ui": {
    "open_in_tab": true,
    "page": "options.html"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_start",
      "js": [
        "content-scripts/content.js"
      ]
    }
  ]
}