Same thing, right click on desktop and select Properties.
Select the Appearance tab. Click on the Advanced button.
Under Item, select Active Title Bar. Next to it, there's a size
field. Choose 25.
Font size for Active Title Bar is 10.
Next item, Inactive Title Bar. Size is again 25. Font size
10.
Third item, Caption Button. Size is 25.
Fourth item, Message Box. Font size is 8.
Fifth item, Menu. Size is 19. Font size is 8.
Sixth item, Scollbar. Size is 17.