Hi Jeff, The color editor dialog shown with the "co" keyboard shortcut is the same as the one you see when pressing on color buttons. The colors shown at the bottom of that dialog are saved in the preferences files automatically. If you wanted to preserve them you could copy your ~/.chimera/preferences file to a file named "preferences" say in a directory with the figures you made with those colors. If you start Chimera in that directory (from a terminal window) it will use the file named "preferences" in that directory if it exists instead of the default ~/.chimera/preferences. I've added a request to support multiple color palettes to our Chimera plans page (will appear tomorrow). http://www.cgl.ucsf.edu/chimera/plans.html Tom