A few weeks ago, I complained about the possibilities to align and group elements when designing KDE dialogs with Designer. But in order to make Designer better meet our requirements, we first have to define what KDE dialogs should look like: We need to define guidelines.
In a first step, I had a look at dialogs and guidelines of the four major desktops: KDE, Gnome, Mac and Windows.
Comparison of the major existing Dialog Layouts
Status quo: KDE