Hello, I found out that the problem is actually the package "qml-module-org-kde- qqc2desktopstyle" which is installed with plasma/kde When one uses that desktop, this package can not be removed. Moreover, this is the style that is used as soon as one uses KDE/Plasma However, when I rename the folder /usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/ Controls.2/org.kde.desktop then I don't have anymore these icon & display issues
Nevertheless it is possible to define environment Variables for Qt Quick Controls 2 :) Thus the workaround for now is to load welle-io with QT_QUICK_CONTROLS_STYLE defined The styles that work best are : - Universal - designer With : - Material - Imagine - Fusion there are some issues (with the dropdown list, or colors of text/icons depending on background) With "org.kde.desktop" there are even more issues (that I described initially in this bug report) My current choice is running it with Universal (which can also be themed): QT_QUICK_CONTROLS_STYLE=Universal welle-io Other ways to control the QML style are defined here (either in the code configuration or through env Variables): https://doc.qt.io/qt-5/qtquickcontrols2-environment.html https://doc.qt.io/qt-5/qtquickcontrols2-configuration.html For reference, the version of qml-module-org-kde-qqc2desktopstyle on my system at the time of the report is 5.54.0-1 (currently in buster/stable, testing & sid)
