It would still be bright with leds, but not as bright as the HVAC controls. I did mine with regular lights and the shifter looked too dim when compared to all the rest.
I'm gonna try and get the gauge lights done as well when I get the new cluster. Hopefully it works.
Here's a pic for you. I tried the acetone on the 1 and got really pissed until I realized there's no 1 on our cars.