How to have a different font for Full Screen

Can someone help me figure out how to change the font on the full-screen view? In preferences, when I change the width, the font color, and the background color, those all show up immediately, and as expected. But when I change the font listed for the full-screen font, it always seems to still match the font for the rich text font. This is true even if I later create a new note.

The font is only applied to plain texts, not to rich texts. Rich texts use only the specified background/foreground colors in fullscreen mode.