Show HN: Tophat – Open source Bootstrap 4 themes (themesguide.github.io)

This is the first 12, but I will soon be adding more. The intention of these themes is to add a lightweight style-layer/skin to give your Bootstrap 4 projects a unique, custom look-and-feel. They can be used alongside the standard Bootstrap CSS (no custom rebuild reqired). Thanks for taking a look!

Very nice work. Will definitely play with your themes at some point.