[Users] Instructions to configure Claws Mail -- help appreciated

[Ralf Mardorf]

Perhaps the OP wants to get something like ...

From: Chris Hirst <claws-mail at fy3.co.uk>
List-Id: <users.lists.claws-mail.org>
To: users at lists.claws-mail.org
Subject: Re: [Users] Instructions to configure Claws Mail -- help
appreciated Date: Thu, 4 Feb 2016 14:20:11 +0000
Sender: "Users" <users-bounces at lists.claws-mail.org>
X-Mailer: Claws Mail 3.13.2 (GTK+ 2.24.23; x86_64-unknown-linux-gnu)
Organization: None at all

... or all headers, but with a different background colour.

"Display header pane above message view" only shows "From", "To" and
"Subject", with or without "Show all headers enabled".