HI, ; The frm I use most is the ManyMods. One of the reasons is the versatility. In an almost intelligent way it adapts to different settings and other frms. Only 2 examples Space Station 160214 and Two Kinds of structures 180214 and many more. It came to life in a collaboration between Sylvie Gallet and Linda Allison. In today´s MOTD it adapts to the Newton frm in an also intelligent way; There are 3 different images which only change the number of elements for a half circle, 3, 7, 32. The images look entirely different although the basic shape is the same. For 7531_b1 there is an alternative coloring which can make you shiver. ; https://www.dropbox.com/sh/ti0cbisn08yg9ix/sndHfvqKqZ ; Cheers, Albrecht