Chas,
I knew I could count on you...
My favourite instrument panel was my Lancia Thema's (as below) - six rather elegant gauges telling you everything that you didn't really need to know. The black panel was made of translucent material, so the numbers were back-lit. As if that wasn't enough, the whole cluster was also front-lit like the Uno's. I counted nine bulbs just for the illumination...
I changed my Uno Turbo, on a bit of a whim, so that the instruments light up in red. I removed the green strip at the top of the cluster, and put onto the bulbs those red silicone caps that you can buy. It worked perfectly - the needles show up particularly well (being red/orange) and I can still read the odometer easily. At the same time, red is thought to be less interfering with night vision (and, photographic darkrooms are lit in red, so that tells us something about the intensity of red light being low).
There are actually all sorts of excuses; one of my others was that red is the colour of passion and love, which is what I want to be with me when driving my Uno Turbo.
I then went on to change the heater controls so that they also light up in red and, err, red (instead of green and red, not a complete success there), and the clock which also looks great in red.
I drove a BMW 525 recently and noticed that the dials light up in red as standard, so possibly I'm not the only one that thinks it works well

But yes, black dials all the way - with red numbers!
-Alex