Reinhard:
I almost have it! I have figured out how to change the font for everything except the labels: Inside, Outside, Apparent, etc. and I also cannot yet change the font of the labels in the U o M box: Temperature, Rainfall, Pressure, etc. There are two different places that effect the way the credits display. I can change the size of the radio buttons and the credits at the bottom but not the label items. Still looking...
Thanks for the tip on the popup graph font.