Bugs dealing with high density displays issues like on the Apple Retina, Chromebook Pixel, etc.
The wiki page about HiDPI - https://wiki.documentfoundation.org/Development/HiDpi
Adding bug 100304, need someone with a dual headed 4K/Retina system for testing visual glitch with cascading menus.
Tip for "simulating" HiDPI on Linux with gtk3: launch with
GDK_SCALE=2 SAL_USE_VCLPLUGIN=gtk3 libreoffice
Simulating with kf5:
QT_SCALE_FACTOR=2 SAL_USE_VCLPLUGIN=kf5 libreoffice