Magento 2.1.x. How to Switch the Default Theme (Layout Switcher Module)

Here you can find the instructions on how to switch the default theme for your Magento store.
  • Log into your Magento admin panel and navigate to the Stores > Configuration section.
  • Expand the TEMPLATEMONSTER tab and press the Layout switcher tab.
  • Choose the theme you want to use as default from the Default theme option dropdown.
  • Press the Save Config button on top right and check your site frontend.