Jethro is a Drupal 8 bootstrap multipurpose theme, Developed for your Business, Corporate, Portfolio.
Its easy to use and fully customize.

Features :

  1. Based on Bootstrap
  2. Customizable Slideshow
  3. Customizable Social icons
  4. Font awesome support
  5. Support Multi-level menu

Enable Multi-level Menus :

There is two important configuration to enable the multi-level menus in drupal,
1. Enable "Show as expanded" option in the parent menu item
2. Set unlimited on "Maximum number of menu levels to display" in Main navigation block configuration