I have found that Visual Editor add-on has one part functionality which could be useful in my project, so I wonder if I could implement this functionality in my project for free?
I am specially interested in a component icons and the editor vertical split panel css style.
Visual Editor is released under Apache 2.0 license, so re-use of its parts is allowed.
Couple of wishes: If you use parts of it, please mention Vaadin as a source of those element. Also it would be best to try to differentiate your project visually from Visual Editor.