I spent about 60 seconds trying to figure out how to clear the modal that comes up after clicking on "Button Builder". The "X" to close the dialog is so thin that I literally couldn't see it. That isn't good design.
Once I figured it out, neat tool.
Once I figured it out, neat tool.
Edit: most good *Box implementations let you click/tap on the grey overlay. It is a much larger target and that is what I try before looking for the X. This implementation does not have that feature.