To make the readings box on Style A windows different font 
and size:

The readings box that appears when you click on the planets on 
window style A mimics the font settings on the right side of the 
window in the standard readings text area where you see the 
font and font size menus.

So:

1. Pull up a chart that has readings.

2. Click on a reading that has text (some of the Raja Yogas 
don't have text in them)

3. Set the font and size of the standard small readings box using 
the two menus until you like it.

4. Pull down the Prefs menu to "Save Windows" which will 
save your changes.

5. From now on, whenever you click a planet the text below the 
chart for the "Click readings" will be like the field on the right 
that you changed.