Mint-X theme doesn't honor custom font size settings

[maXmo]

When I set font size in appearance settings, Mint-X theme doesn't use it, while other gtk2/3 themes like Zukitwo do. Zukitwo is good, but when I select it, taskbar is white text on light-gray background, I don't see anything. Is there an easy way to fix Mint-X or Zukitwo?
It's mint 14.1 mate.

[Monsta]

Is there an easy way to fix Mint-X

Yes. An old and well-known problem, but easily fixed as described here: viewtopic.php?f=90&t=73186#p429753 (and read the next post too)
Please note that it's a hack and you'll lose these changes when the mint-themes package gets updated.

or Zukitwo?

Yes. Just remove that theme (it's not updated for GTK+ 3.6, hence the "white text on light-gray background" syndrome) and follow the instructions here to install the updated theme.

[maXmo]

Huh? Zukitwo page at gnome-look says it's designed for GTK+ 3.6, deleted and installed from ppa, no difference, still white on gray. Though cupertino theme looks great (it complains about missing murr,,,,,ine engine - yes with 5 commas), will use it, thanks for the tip.