As long as you are considerate of the needs of colorblind people, I would vote that anything goes.
Artem On May 20, 2012 3:17 PM, "sujata halder" <halder.suj...@gmail.com> wrote: > Hi all, > > I was wondering if there is a rule for coloring metal ions a specific > color. I am using pymol and was not sure if I have to use a specific color > for calcium or magnesium ions for publication figures. > > Thanks, > > Sujata >