User selectable font colour> From their own POV
 

A few of the users on our forum often complain about our light grey font being a little too dark for them on the grey/black background. Personally, I think it is fine, an assume that their monitor contrast/brightness is set up incorrectly.

I did knock the brightness up a little but their complaining is relentless. I'd be happy if there were an option for them to go to their conrol panel and change the 'default font colour' that I use to something more suitable for them to read. Obviously, the font colour should only be different from their own point of view. I know different areas use different CSS, I guess the most important area to have a different font colour for these users would be in the postbit.

Anything like this out there already, anyone think this is worth creating?