I was referring to recent-ish IDEs, although from all those you mentioned the only that do not look like Emacs to me are Allegro CL and Xerox's. The rest might

I was referring to recent-ish IDEs, although from all those you mentioned the only that do not look like Emacs to me are Allegro CL and Xerox's. The rest might not have exactly the same UI, but they still have a UI that looks very similar to Emacs. As an example to the contrary, both the Allegro CL and DrRacket would be UIs that are not similar Emacs.