An option to change the Metering Colors would be really great! Be able to do solid colors or a gradient of some sort; cooler colors at lower levels to hotter colors towards hotter levels, etc. 
I think that would suffice globally as well, since all meters are the same color now anyway.
Also, it would be really cool to change the Colors of the Clips During Record too! I personally like Red, just like Logic Pro X or Pro Tools. It just seems to be universally known in a sense; "Red light on means record".