Customize skin 'Main page of a single day', Naming error

Like me you might have recognized that editing the default site skin 'Main page of a single day' does not have an effect. This seems to be a problem of antville.org default layout. The link in the site skin list refers to skin 'day.main' while the id is in fact 'Day.main'. So if you want to edit the skin, simple select 'Main page of a single day' and change 'key=day.main' to 'key=Day.main' in the browser url.