I have a board that I would like to be able to read the terminal labels on both sides. During the PCB layout, I add the text to the top and bottom silkscreen layers. The top layer works fine, the bottom layer appears mirrored in the PCB editor - which makes sense. Then when I generate or view the Gerber file, the text on the backside of the PCB is still mirrored. That doesn't make sense, how to I make text on the back silkscreen layer that I can read?