Newb question: Is there a way to set/change the color of the text
displayed in a NSFormCell?
Yes.
NSFormCell does'nt seem to have methods like setTextColor or
setBackgroundColor etc. so I'm not sure how to approach this. At
times I need to display red text in certain cells when data from a
array of sensors goes out of range and set it back to black when
those elements indicate normal conditions.
NSFormCell does have a -setAttributedStringValue: method. You may,
however, be able to automate what you're trying to do by using
NSNumberFormatter.