* Psionic K <psionik@positron.solutions> [2024-12-04 12:57]:
> Help me understand the problem more.  The current implementation uses
> window margins.  If your Emacs has obviously visible margins, then the
> effect is less good.  Can you set window margins to zero to see if that's
> the source of your "vertical lines"?

See vertical lines on left and right side in attachment.

-- 
Jean Louis