The new features of this release are mostly implemented by Craig Drummond, the creator of QtCurve. He kindly added the following features to Kvantum:
(1) A key for drawing scrollbars inside view frames;
(2) A key for drawing combo popups as menu popups;
(3) More x11-drag control;
(4) Support for bold (and italic) GroupBox titles;
(5) A key for layout margins; and
(6) A way of respecting some default settings of Unity and Gnome when Kvantum is used under them.
The other changes are:
● Three new themes;
● Dark toolbar and menubar for KvFlatLigt;
● Minimum push button width and centered text+icon in push buttons (thanks to Craig for making me notice it);
● Support for KDE monochrome icons that reverse color on selection;
● Pattern support for frames;
● A new section for styling toolbar buttons; and
● Some additions, modifications and fixes.
NOTES:
(1) If you have Qt-5.7, you might ecnounter random problems with window translucency. They are not caused by Kvantum but by a regression/bug in Qt. To avoid them, you could disable window translucency with Kvantum Manager in themes that support it.
(2) If you have customized extra themes with Kantum Manager, you might need to restore their default settings and customize them again.