Notes on code originating from external source:

Tablet Tester

Files are taken and possibly modified from the git repo of Drawpile on commit bc06dceba83e8c758d25cfe81b986e18f38aae95.

File	Original in repo of Drawpile
tablettester.cpp	src/desktop/dialogs/tablettester.cpp
tablettester.h	src/desktop/dialogs/tablettester.h
tablettest.cpp	src/desktop/widgets/tablettest.cpp
tablettest.h	src/desktop/widgets/tablettest.h
tablettest.ui	src/desktop/ui/tablettest.ui