Hmm, I was afraid that it was a CSS thing that may have changed since the app was created. The clone works for me but I should have mentioned that you have to click on the initial folder to see the tree.
I shrunk the spacer as much as I could, and the indentation was as it was above. But perhaps doing that in code will allow me to shrink it more.
Thanks very much for the feedback. Much appreciated. I will try the suggestions.