Only experimental K-Meleon builds based on GRE 1.9 seem to have this pref.
Pref is not by default present in GRE 1.8.1.17 not for FF nor for K-Meleon.
Details at
http://kb.mozillazine.org/Gfx.color_management.enabled
You can try whether it already works (the link mentions "Trunk" = GRE 1.9).
Edited 1 time(s). Last edit at 10/22/2008 08:30PM by guenter.