Working on it! Adding new props is luckily as easy as adding a new XML file... oh wait. The only problem is that I'm lazy and that I first wanted to test the three basic types (wheel/ball, box, static segment). I just added a way to add new props to the level and to delete old ones, so that I don't need to create the level in code:

(The popover was programmed by a guy named Werner ( https://github.com/werner77/WEPopover ))

Redeemer, I never thought of it as being a techdemo, but thats a great idea! If I finish this small project far enough, I will certainly add the source to the Vinter repository.