How do I change the color of the PFD, ect.?

[B_7772]

As the subject line says, How do I change the color(s) of the PFD, EICAS ect.?

For example,

from this,

========================

to this,

Copyright,
Picture from Airliners.net, taken by Werner Horvath at the Paris Air Show (June 2003)

[BAW0343]

I don't think there's an easy way as you would have to edit/make a new gauge for the aircraft.