I'll have to rescind my former statement(s). I did more testing
There are definitely issues with touch not registering on some themes. As I tried more and more themes, I started to see it more and more. And it's bad. 2-3 times minimum to get the touches to register, especially on the Tron looking theme (I forget it's name). There are many more themes with this issue as well, and it appears over time the more cache/data stored in the MyColorScreen folder, the less responsive the launcher becomes. It got to the point of being unusable until I uninstalled, deleted the folder and reinstalled.
This, coupled with the intense RAM usage and pretty aggressive battery drain (10-12% daily, minimum) and I have to hold off on using Themer for now.
I'm not against sacrificing one or two minor things, but to sacrifice device response + RAM + Battery is too much just to use Themer. I will wait and watch and as improvements are made I will reinstall and retry.