SlackBuildsOrg/libraries/lxqt-qtplugin

lxqt-qtplugin provides the library libqtlxqt to integrate Qt with LXQt.
With this plugin, all Qt-based programs can adopt settings of LXQt,
such as the icon theme.

To integrate Qt with LXQt, export the following environment variable:
QT_QPA_PLATFORMTHEME=lxqt