Examine source code of FocalReader – ADHD Focus Reader

{
  "manifest_version": 3,
  "name": "FocalReader – ADHD Focus Reader",
  "version": "1.4.0",
  "description": "Dim the page around what you're reading. Smart Window snaps focus to paragraphs and headings. Built for ADHD & dyslexia.",
  "browser_specific_settings": {
    "gecko": {
      "id": "focalreader@ajitsoni.dev",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  },
  "permissions": [
    "storage",
    "activeTab",
    "scripting"
  ],
  "host_permissions": [
    "https://focalreader-pricing.ajitsoni000005.workers.dev/*",
    "<all_urls>"
  ],
  "commands": {
    "_execute_action": {
      "suggested_key": {
        "default": "Alt+Shift+P",
        "mac": "Alt+Shift+P"
      },
      "description": "Open FocalReader popup"
    },
    "toggle-focus": {
      "suggested_key": {
        "default": "Alt+Shift+F",
        "mac": "Alt+Shift+F"
      },
      "description": "Toggle FocalReader on/off"
    },
    "toggle-follow-mouse": {
      "suggested_key": {
        "default": "Alt+Shift+M",
        "mac": "Alt+Shift+M"
      },
      "description": "Toggle follow mouse mode"
    },
    "toggle-auto-dim": {
      "suggested_key": {
        "default": "Alt+Shift+A",
        "mac": "Alt+Shift+A"
      },
      "description": "Toggle auto dim mode"
    },
    "toggle-smart-window": {
      "description": "Toggle Smart Window mode"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true
  },
  "action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    },
    "default_title": "FocalReader"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "lib/dom-accessibility-api.js",
        "content.js"
      ],
      "css": [
        "content.css"
      ],
      "run_at": "document_end"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "content-shadow.css"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  }
}