The Vantage theme allows displaying category mega menu in the navigation bar and on the dedicated Categories page.
Vantage Category MenuCurrently, there are no options for customization Category menu, but fortunately it has all necessary hooks and filter for that.
The filter "va_listing_categories_{$location}_args" allows changing parameters and alternate category menu for navigation and categories page separately. Dynamic part {$location} determines the location of the menu to apply changes for:
va_listing_categories_dir_args - applies changes to menu on the Categories page.va_listing_categories_menu_args - applies changes to the navigation mega menu. Filter 'va_listing_categories_{$location}_args' Basic parameters 'menu_cols' - (int) Columns number. Default 2 for page or 3 for navigation menu.'menu_depth' - (int) Number of sub categories levels. Default 3.'menu_sub_num' - (int) Max number of subcategories. Default 3.'…