Hello Tobi, I think the package is ok. As Lazarus only handles Gtk2 and Qt5, I have switched to Qt5 in this package. Note that it is easy to switch back to Gtk2 by specifying the TARGET=Gtk2 for make.
That's upload 7 of: https://mentors.debian.net/package/lazpaint/ You can find it here as well: http://johann-elsass.net/debian/lazpaint/ All is generated from upstream an debian: https://github.com/bgrabitmap/lazpaint-upstream Regards