Examine source code of RedirectTube

{
  "name": "__MSG_extension_name__",
  "description": "__MSG_extension_description__",
  "author": "Michał Stankiewicz",
  "version": "2.0.2",
  "manifest_version": 3,
  "default_locale": "en",
  "icons": {
    "16": "img/icns/redirecttube/color/allow/16.png",
    "32": "img/icns/redirecttube/color/allow/32.png",
    "48": "img/icns/redirecttube/color/allow/48.png",
    "64": "img/icns/redirecttube/color/allow/64.png",
    "96": "img/icns/redirecttube/color/allow/96.png",
    "128": "img/icns/redirecttube/color/allow/128.png",
    "256": "img/icns/redirecttube/color/allow/256.png",
    "512": "img/icns/redirecttube/color/allow/512.png"
  },
  "background": {
    "scripts": [
      "shared.js",
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "shared.js",
        "content.js"
      ],
      "all_frames": true
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "i18n/locales/*.json",
        "iframe-placeholder.html",
        "iframe-placeholder.css",
        "iframe-placeholder.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "permissions": [
    "storage",
    "tabs",
    "contextMenus"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_title": "__MSG_ui_button_redirect__"
  },
  "options_ui": {
    "page": "options-placeholder.html"
  },
  "commands": {
    "redirect-current-tab": {
      "suggested_key": {
        "default": "Ctrl+Shift+F",
        "mac": "Command+Shift+F"
      },
      "description": "__MSG_commands_redirectCurrentTab_description__"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "redirecttube@stankiewiczm.eu",
      "strict_min_version": "109.0"
    }
  }
}