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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: Emacs canvas support
Date: Fri, 01 May 2020 09:01:57 +0300
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To: Juri Linkov <juri@linkov.net>
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> From: Juri Linkov <juri@linkov.net>
> Cc: emacs-devel@gnu.org,  luangruo@yahoo.com
> Date: Thu, 30 Apr 2020 23:20:18 +0300
> 
> > Did you try using svg.el?
> 
> I tried, but svg is not great, it has many unfixed problems with scaling
> and backgrounds.

Cannot these bugs be fixed?

> OTOH, I hope with canvas it would be easy to draw such shapes around
> the tab name like in web browsers shown below, and also to implement
> overlapping tabs.  At least canvas in web browsers allow doing such
> custom drawings.

The problem with canvas is that we have yet to figure out how to teach
the display engine handle them correctly and efficiently.  svg.el
doesn't have that problem.