Postprocessing black lines with white edge

I have a Probelm with the postprocessing in Flamingo nxt render window: Grid Net & Text (sorry for wrong words, but I have the German version)
All lines have a white rim or edge. I just want see only black lines after postprocessing. An example is in the appendix.


Sorry, I don’t have a work around for this directly in Flamingo. I filed this as a bug for future reference…

I can however offer the use of the free Neon viewport renderer and the default Rhino Render. The addition of edges, isocurves or curves is controlled via the Display panel while in the Neon mode. The really cool part is that you can adjust the pixel widths and colors separately in the full options for the Neon display mode.