Подскажите, где берет иконку в трей korganizer?

Смотри там:

/usr/share/icons/slick/48x48 /usr/share/icons/slick/32x32 /usr/share/icons/slick/22x22 /usr/share/icons/slick/16x16

/usr/share/icons/kdeclassic/48x48 /usr/share/icons/kdeclassic/32x32 /usr/share/icons/kdeclassic/22x22 /usr/share/icons/kdeclassic/16x16