Troubles solved

Bughunting gets really difficult, if you have a lot of GtkWidgets nested and one calculates its size wrong. So finding that little error took longer than implementing the Gtk table calculations into gtk-mui. It's always the last 10%, which take up 90% of the time ;). But now it looks promising:





Even the page, which was the reason for all the effort, looks now (nearly) perfect:





You can now do homogeneous and not homogeneous tables, with elements covering more than one cell horizontally or vertically. Tables grow automatically, if you add rows/columns etc. Maybe I should make a custom mui class out of this.. but not now;).