Ignore the "Brightness: 120" part. That's madness. I don't know why labs insist on saying that.
Gamma 2.2 and Temp 6500 are good guides.
As long as you follow my instructions here, you'll be fine. Have you got your ProDPI prints yet?
Glad we got that sorted out. Now, back to these glasses ...
I used a Levels layer, and moved the white slider on each channel thusly:
Red 170
Green 150
Blue 135
Then masked it as needed - first at 100%, then massaged it at 10%.