Can Only Change Font Size In All Tab

[Speckster]

Trying to read the tiny print is crazy.  When I change the font to larger size it only applies to the one tab, even if I mark the apply to all box.  

[fatalystic]

A little old, but I believe the "Apply to all" option means it controls all the different types of text for that one tab. If you look down, you'd notice that you can set each kind of text to a different font size. Doing so will uncheck "Apply to all".