musescore/MuseScore — pull request #1570 by MarcSabatella (2014-12-21 22:32:48+00:00)
Title: scale palette, selection filter, and inspector with -x option

There are any number of other hard-coded sizes in the source, but this covers the stuff I find myself having to redo every time I run with "-F" because of my high dpi display. Well, the sizes of the panes in the file dialogs are not great either, but I'm not quite understanding how that works.