It is a great app. In my oppinion it is the best hex editor I've ever used. BTWl...I don't know what your problem might be on 16 bit screens.
I have been running it regularly for many years on an 1120x832 16bit custom P96 screen. It is perfect!
It might be a problem with some of your default fonts. I really don't know, but again I've used it
for years...registered actually, and it looks and functions perfectly on 16 bit screens here. :/
regards,