Quick question – in the topology file is “color” restricted to the names
of colors as specified by Chimera? Or can we use the 6-digit hex code as
well? E.g. instead of “red” use “#ff0000”.
According to that and the code color can be "chimera names or R,G,B
values". So you could use "1.0, 0.0, 0.0" for "red". It would be easy to
add support for 6-digit hex codes though - I'll open an issue.