You can choose a transparent outline + non-0 stroke width and draw shapes with these settings

[fsih]

You can choose a transparent outline + non-0 stroke width and draw shapes with these settings @rschamp

You shouldn't be able to set outline to transparent and stroke width to non-0

[fsih]

You can choose a transparent outline + non-0 stroke, and draw lines. The lines appear as 1px black, so the outline color should appear to be black @rschamp