[Evolution] highlight folders with new messages

[Oliver Kurlvink <truheml metal de>]

hi there :)

i know there have been many discussions in the past about how to handle
the notification of new mails. afaik the current position is "to bold"
folders which have unread mails. that's okay to see whether there are
unread mails, but it does not tells you if there are new mails. just
take a folder with 200 mails and 2 unread mails. these two mails arrived
two weeks ago and you just not want read them, because they seem to be
spam. now you fetch mail and get 20 new mails. if you now just take look
at the bold font, you cannot image whether there are new unread mails or
whether the folders is bold due to the old unread mails. you have to
remember the unread count and do a little math... what about using
different colors for the folders? pm mail for os2 made this very thick.
you had red, orange and green folders and folders which had subfolders
which got new mail got a little green arrow pointing down. this way you
could always see which folder got new mail during the last fetch.