Why is font too small for WinSCP, when it is big enough for other applications?

I understand from FAQ that the program uses system icon title size fonts. I would like to see the ability to change the size of the font for tool bar as well as the panels (file directories). I don't want to change icon title size because it affects all other programs and this size is too small in WinSCP. Otherwise, thanks for a great program. Works well. I especially like the directory comparison option; it's really helpful.