Some of our users would like to be able to change some settings in apperence. For example Font-Size, Font-Color or even Font-Type. Also some of them don't like yellow highlight for flagged e-mails in the current version, would like to get back to like it was before. I already asked Smartermail-Support if it's possible to change some of these stuff manually (CSS or whatever). They told me they will post a feature request to developers, there's no possibility to change it manually but can maybe be added as a setting in the future. We're looking forward to that.