Version: (using KDE KDE 3.5.1) Radial menus (yes round ones) are more efficient to use because all options are closer the the mouse at time of need and it is harder to miss. check http://www.radialthinking.de/radialcontext/ for an example of a plugin for firefox that creates this type of menu.
*** Bug 162921 has been marked as a duplicate of this bug. ***
*** Bug 368938 has been marked as a duplicate of this bug. ***
bug#368938 has a point. And here's some more "better future" from the past: https://en.wikipedia.org/wiki/Project_Looking_Glass https://en.wikipedia.org/wiki/Metisse https://en.wikipedia.org/wiki/Fsn_(file_manager) https://en.wikipedia.org/wiki/Model–view–controller https://en.wikipedia.org/wiki/Pointing_device_gesture With proper detachment of application data and its representation by compositor that Wayland allows and agnosticism to all types of pointing input devices (mice, hands, styli, joysticks/gamepads) that pie/radial menus provide, a true modern DE could be build in place of reinventing concepts from 1988 over and over again.
Context menus are layed-out/rendered by Qt, not by KWin. Please suggest this feature directly to Qt developers via https://bugreports.qt.io/
(In reply to Christoph Feck from comment #4) > Context menus are layed-out/rendered by Qt, not by KWin. Please suggest this > feature directly to Qt developers via https://bugreports.qt.io/ https://doc.qt.io/qt-5/qml-qtquick-extras-piemenu.html https://doc.qt.io/archives/qq/qq11-piemenu.html And DE's visual design is DE's business. If you're going to actually modernise it then it's up to you to do the appropriate steps. "This feature" seems to have existed in some form in Qt5 for years already but where can we enable it in KDE ? Would be nice to see something other than gaudy palettes, indistinguishable monochrome icons, blocked scrollbars, button gigantism, removed widgets, abandoned basic suite apps in updates at least once in 10 years. https://stackoverflow.com/questions/34921317/qt-how-to-make-pie-custom-menu - seems KDE have been dragging its feet for so long that Qt has implemented it and then abandoned due to disuse and reimplemented in QML's shallow web-form. And then 5 more years have past.
If you want radial menus as context menus in Krita, ask Krita developers to add code. If you want them in every KDE application, ask Qt developers. We won't change every application if the code is shared in a single library.