sorry, I´m thinking this Hack is not completed !!
user-color will always show wrong !!
what does user write in custom registration field ???
only the hex-code of color ?? Like : "#0066ff" or only "00ff66" or "color=#0066ff"
or color - name ?? Like : "blue" ????
and if user doesn´t type anything in this custom registration field, then the posting will not show !!!
that isn´t it, or ????