Change Font characteristics with a variable?

rogerb Community Member Posts: 29
I'm running a timer on a screen and when it reaches 30 seconds I need to change the font from black to red.

I can 'fake' this by running two text boxes (a black one and a red one) and hiding one at the 30 second mark. Is there any way I can do this a bit more elegantly by using a variable to modify text properties in a single text box?