I think this is a completely overlooked topic about this mod, but I just think that some people are more concerned with looks over functionality.
Toyota (and many, many more auto manufacturers) have spent literally MILLIONS of dollars researching the best, least intrusive color of dash lights to put in cars. Though the amber-ish color is far from pretty, I assure you that it causes the least amount of night vision loss out of any color on the spectrum. It seems like a lot of people like white, unfortunately, there is no worse color for your gauges to be, as it causes the most pupil pinpointing, and makes it harder to see other unlit/dimly lit things at night. It's your car; do what you want. But it seems like a mod that is time-consuming, costly, and mostly - pointless.