OSX Retina draw low resolution widgets check, radio, combo-boxes when window is inactive

All Qt 5.2 apps draw correctly widgets when window is active (blue checkboxes), however when window is inactive following widgets (maybe the others too) are drawn with low resolution: check and radio boxes, combo boxes and drop menus.

Buttons are not affected. Installer outline(tree) list is not affected.

See attached screenshot, made of MaintananceTool, zoomed 3x to visualize difference.

This bug also affects QtCreator and Installer.