small font in yast

how can i change the font for yast or samrt-gui ?they are too small

i have changed my kde font setting to 15pt fonts but it has no effect on yast

and using “qt setting” show that font for qt is 15pt …so where i can chage this font size?

do i have to go to root to do this ???

and in obexGUI-front-end font are very very small how can i chnage that ??

i found the answer for yast and smart
just in terminal switch to root user then type “qtconfig” and there change the font size to a bigger one

but for obexGUI-front-end font …still no success