Ah, thanks for the clarification! (Elaine was right about what I was trying to do).

I wrote a python script that generates a .cxc file that randomly colors each residue one at a time.

Best,
-da

On Fri, Aug 30, 2024 at 12:19 PM Elaine Meng <meng@cgl.ucsf.edu> wrote:
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Hi Daniel,
The random color per residue is on the cartoon (ribbon), since cartoons can't be colored per atom.  For example, commands:

open 2gbp
color random

The atoms are colored randomly per atom.  As far as I know, there isn't a way (other than probably some python script that is beyond my skill set) to make all the atoms of the residue match the random color assigned to the residue cartoon.

I hope this helps,
Elaine
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Elaine C. Meng, Ph.D.                       
UCSF Chimera(X) team
Resource for Biocomputing, Visualization, and Informatics
Department of Pharmaceutical Chemistry
University of California, San Francisco


> On Aug 30, 2024, at 11:31 AM, Daniel Asarnow via ChimeraX-users <chimerax-users@cgl.ucsf.edu> wrote:
>
> Hi all,
> In the color command documentation, it says 'color random' can per atom or per residue. How can random residue colors be specified? I can only get random atom colors.
>
> Thanks!
>
> -da