Hi, here's the screenshot,
,
As you can see, Dolphin still using "Oxygen style" for the Progress bar (space informaion).
But when I use "sudo dolphin", it working properly in Dolphin.


BTW "kdesu dolphin" has the same problem.
It really weird and annoying , how do I fix it? Thanks!!!

That's not a progressbar but a custom "CE_CapacityBar" widget
it's not painted in oxygen style, that's a qtcurve look or the failsafe implementation, can't say at hand.

no idea whether and where that look can be defined for QtCurve

luebking wrote:That's not a progressbar but a custom "CE_CapacityBar" widget
it's not painted in oxygen style, that's a qtcurve look or the failsafe implementation, can't say at hand.

no idea whether and where that look can be defined for QtCurve

Sorry for the late reply. Yes, it's Qtcurve issue. Qtcurve-git fixed the bug. Thanks again.
Finally...

There's another reason why Dolphin could be using oxygen: it seems to give precedence to the selected Qt style over the selected KDE style. On one of my systems Dolphin used oxygen because the style set in qtconfig was still oxygen. After switching that setting to QtCurve, dolphin used the proper style.