1) Different forms possible for the tables. Not only round, but also some others like triangles, ovals etc
2) When you give a différent colour to the same name, the sort out by colour name creates as many headings as there are colours but groups the tables under one of the headings. So there are empty headings. Coud it be fixed so there is only one heading remaining, the one which is not empty. It is a attempt to have kind of "Theme folder" on the tabble panel under which you can have different colors for the same theme. This is useful when you have A LOT of different topic to treat like I do.