On Sat, 1 May 2021, Brian Revell wrote:
I just clicked on the view Larger or Smaller icons on the bottom
rhs options to the right of the Edit Copy Save etc menus and the
error message sprang up.
Ah, I see an error on resizing the plot when the confidence interval
is shown as a shaded area rather than error bars. That's now fixed
in git; the fix will be in the next release.
Tech note: when we resize a plot we add a "linewidth" directive so
that gnuplot will make the lines thicker or thinner. But that's not
valid if the element to be plotted is not a line, as with a shaded
area (or "filledcurve" in gnuplot lingo).