* Open ProblemSolving.graphmlz (example from yEd)
* export graph as SVG file
* open SVG file in your favourite SVG editor (e.g. Inkscape)
Problem: Text in graph boxes is positioned correctly but left aligned. So if you change font/size, the text isn't centered anymore
Wanted behaviour: Text should be centered, so changing the font just changes the font - and not the position of the text