Can’t see themes for Multi-site wildcard subdomain

In a multisite set up you have to enable themes for use on the sites within the multisite.

  1. Get to the network admin area by clicking on your name in the top right to open the menu and clicking ‘Network admin’.
  2. Go to Themes
  3. Network enable any themes you want available to all your sites

If you want some themes to only be available to a single site then edit that site under ‘Sites’ section and go to the Themes tab, then enable the theme(s) you want for that site.