The run config looks awful now.
Not only is it switched around for no particular reason, the fonts are using the editor fonts instead of the dialog fonts.
All the stuff that was easily configurable from tabs is now difficult to discover under a drop down menu.
I can't see any new features added to warrant this.
I could perhaps understand if there were loads of extra parameters required and you ran out of space.
However, as far as I can see you haven't added anything new, you have just made it worse to look at and harder to find the information you need to configure it!