Does anyone knows how to control the
contourf line color and width (I do not find the default one visible enough).
Note that I have tried to overlay call to contour with the same arguments but, for some reasons, the levels do not match exactly…
Contourf doesn’t have any lines at all, those are just border artifacts. Contour needs one level less I think, because for n bands there are n-1 lines
Seems obvious once you know it … Thank you very much @jules !