Binary package “adwaita-qt” in ubuntu mantic
Qt 5 port of GNOME’s Adwaita theme
Adwaita-Qt provides a port of Adwaita theme, which is the default style
of GNOME, to Qt 5.
.
To use it, start your Qt applications with “-style Adwaita” parameter,
or export QT_STYLE_
For the dark version, use Adwaita-Dark instead of Adwaita.
