Tool marker disappears when using negative diameter.

Hello, I am using a G42 with a negative tool diameter for tool wear compensation. The problem that occurs, is when the entered tool diameter is negative, the tool marker on the gcode viewer disappears making it hard to keep progress of the cut. Is there an option for it to nor reference the diameter and leave use the stock pointer?

Why not just use G41 instead of a negative number? 

Never thought about it this way. Might need to try out if no other option is available. Thank you!

Ok, I tried it out. It works, but then using very small offsets like 0.25mm it is still hard to see compared to the original marker.