Version: 1.9.1 (using KDE KDE 3.5.2) Installed from: Debian testing/unstable Packages OS: Linux There is a cool extension ("Quote Colors") for Thunderbird, which makes multi-level quotes so much more readable. Instead of '>' signs, a vertical line is displayed with a different colour for each level. And the background of each level has a different colour, too. A feature like that in KMail would be great! I am attaching screenshots to illustrate my point.
Created attachment 18500 [details] example email
Created attachment 18501 [details] Thunderbird Quote Colors option dialog
You can do something similar with Settings->Configure KMail->Appearance->Colours->(First|Second|Third) Quote Level, but it doesn't change the background colour
*** This bug has been marked as a duplicate of 106574 ***