Hard to see heating control numbers

The hob is excellent expect for very poorly marked numbers by the dials. The Bosch logo is very clear so the marking could have been made much clearer, I’m afraid to clean the area around the control knobs as I think the markings will quickly disappear. I think this is very poor for an expensive hob, maybe a cheaper one would last much longer, I was tempted by Bosch’s reputation, so I expected better.