Choosing Windows Qt style, or others (Skulpture) , there is not real time volume indicator on top of the volume slider.

I thought it was an problem of Skulpture theme, so I've opened an issue here

Quoting the dev answer of the developer:

The pavucontrol-qt application hardcodes the height of the QProgressBar widget, see line 41 in https://github.com/lxqt/pavucontrol-qt/blob/master/src/minimalstreamwidget.cc

If it doesn't want to use QStyle::sizeFromContents(), then it could at least query the frame width using QStyle::pixelMetric(PM_DefaultFrameWidth).

System Information

• Distribution & Version: Opensuse Tumbleweed
• Kernel: Linux 4.18.5-1
• Qt Version: Qt 5.11.1
• libqtxdg Version: 3.1.0
  #* Package version: 0.4.0