Comparing directories, a file with difference is highlighted in color.  I would like to see an indication on the enclosing directories, all the way up to the root of the compare, when there is a file with differences - ESPECIALLY when a directory is closed.  That way I can be sure when I'm finished working on a directory, or on the whole tree.  The simplest way would be to highlight the directory name the same way as the file name.

I'm *still* glad I found Meld.