Examine source code of Comic Collector

{
  "manifest_version": 3,
  "name": "Comic Collector",
  "version": "1.3.2",
  "description": "Organize manga/manhwa chapters into nested collections, with a draggable reading overlay and optional cloud sync.",
  "author": "You",
  "browser_specific_settings": {
    "gecko": {
      "id": "comic-collector@yourdomain.example",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": [
          "browsingActivity",
          "websiteContent"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "icons": {
    "48": "icons/icon-48.svg",
    "96": "icons/icon-96.svg"
  },
  "action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "48": "icons/icon-48.svg",
      "96": "icons/icon-96.svg"
    },
    "default_title": "Comic Collector"
  },
  "background": {
    "scripts": [
      "lib/storage.js",
      "background.js"
    ]
  },
  "permissions": [
    "storage",
    "activeTab",
    "scripting",
    "contextMenus",
    "downloads",
    "tabs",
    "alarms",
    "clipboardWrite"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "exclude_matches": [
        "*://*.mozilla.org/*"
      ],
      "js": [
        "lib/storage.js",
        "overlay/content.js"
      ],
      "css": [
        "overlay/content.css"
      ],
      "run_at": "document_idle",
      "all_frames": false
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "icons/*"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "options_ui": {
    "page": "popup/popup.html#/settings",
    "open_in_tab": true
  }
}