It's really hard for me to tell the different between priorities on a project board. High priority is red and medium priority is orange, and they use the same symbol. I can't read at a glance what is most important. I think it would be an easy fix to change it to either a different color, or a different symbol, or just use another marking system such as four dots that get filled with a bright color according to priority, 1->4 being low->high.
Does anybody else share my pain?