What happened? (You can include a screenshot if it helps explain)

When selecting ensembles (eg. in es mda) the colors shift based on the selection and not based on the ensemble.

PS: Maybe it is a feature and not a bug.

What did you expect to happen?

The color for the given ensemble should be persistent regardless the selection.

Steps to reproduce

run es_mda on poly example and plot the response.

Environment where bug has been observed

• Python 3.11
• Python 3.12
• macOS
• RHEL8
• RHEL9
• Local queue
• LSF queue
• Slurm queue
• OpenPBS queue