Child themes not possible
Since it was listed as a feature I am afraid this has to be considered a bug.
It is not possible to create child themes.
If I create a childtheme it refers to the parent theme and gets all style settings from the parent theme.
There is no way to override styles through style.css of the child theme.
If I want to alter for example index-directory.php and put it in my child theme folder it is to no avail since the theme will always call idex-directory.php from the parent theme since this is defined in the settings.
The child theme won't be an option in the settings at all.
So how is this supposed to work? The feature list says child themes are possible ... (?)