Both of my light switch legends were worn out when I got my esprit, it's one of those things that really bugs me every time I get into the car. I got a replacement from SJ's, so that took care of one of them -the other I decided to try and fix somehow.
The switch can be pulled apart quite easily, and the middle of the switch where the worn legend is can be punched out using something of the same size, I used the back end of a small screw driver.
I thought about trying to colour in the black with paint or something but I would most likely mess that up, so I bought another switch with a similar legend. The one I got was from a fiat panda.
after some careful use of a dremel I ended up with this
some careful glueing of the new legend in place and I got a nice new looking switch
quite easy to do and if like me you have worn switches and want to freshen them up a bit, I thought some might like to know that it can be done