Hello, I love the new vertical view and how better and more readable everything looks. I would like to suggest am optional way to move the 'mail body' (message pane) to the middle.
The way it's now with the layout option: 3 views and 3 panes (message headers in the middle). Could we move those around on the vertical view and have the messages pane on the middle? Then, resizing everything would give us a fantastic readability on the e-mails themselves.
For example, I wouldn't care to have the folders pane on the right (or vice-versa), list headers on the left and messages in the middle.
Or even a 'pull down' horizontal folders menu to use just when needed (but that sound more complicated and not that nice, I know). Anyway, the messages pane in the middle would be greatly appreciated.
Thanks for all the hard work. Love Thunderbird since the beginning and intend to keep using and loving it. Cheers!