Dark speaker icon on breeze dark theme

[Eric Valette <eric.valette@free.fr>]

Hi,

After recent qt6/kde6 update, I noticed that the icons for the audio on 
bottom right task (kmix, volume, ...) bar are dark while my theme is 
breeze dark.

So I can't hardly see them. Not critical just annoying.

I openned bug 1117896 for this small bug.

Regards,

--
Eric Valette