[Smokey]

So simple it will make you sick lol!

Dismantle dials
Sandpaper the filter off the back of dials (removes the white and orange filter)
Using red transparent vinyl, cover each number (I did 2 layers for darker red)
Using frosted vinyl, cover entire rear with 2 layers (acts as filter)
Sand filter from needles (if you want)
Fit LED bulbs
Use transparent red vinyl on the plastic filter in the ODO screen
Replace all parts!

This gave me the colour theme I wanted but you could do many variations to get the colour theme of your choice.

I wanted mine to match the carPC centre console with the white ATC buttons. Plus I like that my workmate didn't know what I had done as he hadn't seen the before picture!