We are glad to announce the release of QtitanRibbon 4.8.0. This version fixes many rendering bugs. In addition, the component was adapted to work with the current version of Qt 5.7.

What is QtitanRibbon component?

QtitanRibbon is a Qt.С++ component which implements Microsoft Ribbon UI specification for Qt. It allows you to add Microsoft Windows compatibly Ribbon UI interface to your Qt application. It’s available for Windows, Linux and Mac OSX.

http://www.devmachines.com/qtitanribbon-overview.html