Without fill, line labels that overlay a line (e.g. with follow path) are made illegible by the line itself. If the background is a single color, this can be fixed by setting the fill of the label’s text box to the background color. But this doesn’t work if there is a complex background. The challenge with handling this with element order is that we want a non-linear (cyclic) ordering: box > line, line > background, background > box.
Is there a workaround?