dynamically changing color of labels and edit boxes

["Faria, Sydney C" <sydney faria pw utc com>]

Is there a way to change the color of the text displayed in an edit box
after the text has been put into the edit box?  I have a need to do range
checking on edit box entries and would like to change the text color to red
if the value entered is out of range.  I have a similar need to do this with
labels, and have done this of using a Pango markup: is there an easier way?
Sydney