Ok then all
do you want your Hudy set up to be like this????
All you do is clean them with some metholated spirits (the purple stuff, that cleans tyres etc)
get a blsck and red permanent marker pen and colour in the engravings.
do several times, then with a DAMP meths cloth cently wipe off the Excess leaving easy to read markings.
if you do the degres in read and the wheel one black its easier to see