I changed several system colors to make it easier to see things such as selected items or lines that were not fully constrained in sketches. It seemed to work ok for a while. Then one day selected features like faces and lines would no longer change color. Hitting the reset button solved the problem and I went back and changed a couple of colors without the problem returning. I must have accidentally changed something in system settings, or maybe I changed too many colors. Can anyone help. This is a low vision and color recognition problem for me and I am trying yo optimize my settings.