Examine source code of Comix Downloader

{
  "manifest_version": 3,
  "name": "Comix Downloader",
  "version": "2.3.10",
  "description": "Adds a download button to every chapter on comix.to, with a full settings page.",
  "permissions": [
    "tabs",
    "downloads",
    "scripting",
    "storage",
    "contextMenus",
    "alarms",
    "notifications"
  ],
  "optional_host_permissions": [
    "*://*/*"
  ],
  "host_permissions": [
    "*://comix.to/*",
    "*://*.comix.to/*",
    "*://*.wowpic1.store/*",
    "*://*.wowpic2.store/*",
    "*://*.wowpic3.store/*",
    "*://*.wowpic4.store/*",
    "*://*.wowpic5.store/*",
    "*://*.wowpic6.store/*",
    "*://*.wowpic7.store/*",
    "*://*.wowpic8.store/*",
    "*://*.wowpic9.store/*"
  ],
  "background": {
    "scripts": [
      "lib/jszip.min.js",
      "settings.js",
      "cdl-features-core.js",
      "cdl-comicinfo.js",
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://comix.to/*"
      ],
      "js": [
        "scripts/extract-bridge.js"
      ],
      "run_at": "document_start",
      "world": "MAIN"
    },
    {
      "matches": [
        "*://comix.to/*"
      ],
      "js": [
        "settings.js",
        "cdl-features-core.js",
        "content_title.js",
        "content_features.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "*://comix.to/*"
      ],
      "js": [
        "settings.js",
        "cdl-embed-settings.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "options_ui": {
    "page": "legacy/options.html",
    "open_in_tab": true
  },
  "web_accessible_resources": [
    {
      "resources": [
        "lib/jszip.min.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "action": {
    "default_title": "Comix Downloader",
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "comix-downloader@l1v1.github.io",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  }
}