Examine source code of OLX Enhancer

{
  "manifest_version": 3,
  "name": "__MSG_extName__",
  "version": "1.0.0.31",
  "version_name": "1.0.0.31-firefox",
  "description": "__MSG_extDesc__",
  "default_locale": "uk",
  "permissions": [
    "storage",
    "webRequest"
  ],
  "host_permissions": [
    "*://*.olx.ua/*",
    "*://*.olx.pl/*",
    "*://*.olx.ro/*",
    "*://*.olx.pt/*",
    "*://*.olx.bg/*",
    "*://*.olx.kz/*",
    "*://*.olx.uz/*",
    "*://*.olx.com.br/*",
    "*://*.olx.in/*",
    "*://*.olx.com.pk/*",
    "*://*.olx.ba/*",
    "*://*.prom.ua/*",
    "*://*.rozetka.com.ua/*",
    "*://*.epicentrk.ua/*",
    "*://*.dom.ria.com/*",
    "*://*.auto.ria.com/*",
    "*://*.allegro.pl/*",
    "https://app.olx-enhancer.pro/api/v1/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.olx.ua/*",
        "*://*.olx.pl/*",
        "*://*.olx.ro/*",
        "*://*.olx.pt/*",
        "*://*.olx.bg/*",
        "*://*.olx.kz/*",
        "*://*.olx.uz/*",
        "*://*.olx.com.br/*",
        "*://*.olx.in/*",
        "*://*.olx.com.pk/*",
        "*://*.olx.ba/*",
        "*://*.prom.ua/*",
        "*://*.rozetka.com.ua/*",
        "*://*.epicentrk.ua/*",
        "*://*.dom.ria.com/*",
        "*://*.auto.ria.com/*",
        "*://*.allegro.pl/*"
      ],
      "js": [
        "dist/translations-loader.js",
        "dist/content.js"
      ],
      "css": [
        "assets/photoswipe/photoswipe.css",
        "assets/content/inject.css",
        "dist/assets/info-modal.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "background": {
    "scripts": [
      "dist/background.js"
    ],
    "type": "module"
  },
  "action": {
    "default_popup": "dist/popup.html",
    "default_icon": {
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self';"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "assets/photoswipe/*.css",
        "assets/photoswipe/*.js",
        "dist/rating.html",
        "dist/rating-storage.js",
        "assets/rating.css",
        "dist/rating.js",
        "dist/blacklist.html",
        "dist/blacklist.js",
        "dist/assets/info-modal.css"
      ],
      "matches": [
        "*://*.olx.ua/*",
        "*://*.olx.pl/*",
        "*://*.olx.ro/*",
        "*://*.olx.pt/*",
        "*://*.olx.bg/*",
        "*://*.olx.kz/*",
        "*://*.olx.uz/*",
        "*://*.olx.com.br/*",
        "*://*.olx.in/*",
        "*://*.olx.com.pk/*",
        "*://*.olx.ba/*",
        "*://*.prom.ua/*",
        "*://*.rozetka.com.ua/*",
        "*://*.epicentrk.ua/*",
        "*://*.dom.ria.com/*",
        "*://*.auto.ria.com/*",
        "*://*.allegro.pl/*"
      ]
    }
  ],
  "icons": {
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "olx-enhancer@example.com",
      "strict_min_version": "109.0"
    }
  }
}