Not really true. You are asking that humans perceived red as blue, but I can imagine red things as blue. But if you did not perceive things as red, how would

Not really true. You are asking that humans perceived red as blue, but I can imagine red things as blue. But if you did not perceive things as red, how would you know to relabel them as blue. The robot in this case would undergo the same operation when relabeling. It first has to perceive red, relabel to blue. No major difference unless you swap at hardware level which would be analogous to genetically engineering our eye cones to fire at altered wavelengths