Examine source code of HDrezka Grabber

{
  "name": "HDrezka Grabber",
  "description": "__MSG_manifest_description__",
  "version": "1.0.2.83",
  "default_locale": "en",
  "manifest_version": 2,
  "icons": {
    "16": "img/icons/prod/16.png",
    "32": "img/icons/prod/32.png",
    "48": "img/icons/prod/48.png",
    "64": "img/icons/prod/64.png",
    "96": "img/icons/prod/96.png",
    "128": "img/icons/prod/128.png",
    "256": "img/icons/prod/256.png",
    "512": "img/icons/prod/512.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{aa263073-4f7e-476a-abc7-21aa4f680d86}",
      "strict_min_version": "128.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "browser_action": {
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "src/js/background.js"
    ]
  },
  "permissions": [
    "alarms",
    "scripting",
    "storage",
    "declarativeNetRequestWithHostAccess",
    "downloads",
    "http://*/*",
    "https://*/*"
  ],
  "web_accessible_resources": [
    "src/js/*"
  ],
  "options_ui": {
    "open_in_tab": true,
    "page": "settings.html"
  },
  "author": "mail.aleks.for.work@gmail.com",
  "homepage_url": "https://github.com/kristal374/HDrezka-Grabber"
}