Fix build warnings, size_type of QVector changes from Qt5 to Qt6 so we need an alias for it

Remove functional.h

oops, that stuff isn't meant to be there yet

Remove ring.h

Remove dead code

cleanup version.h

Reformat about.ui a bit

Add OpenGL information to about page

(0) -100 -30 -10 -8 +8 +10 +30 tip

mercurial