I use color palette to chart in the dashboards. However it hold good to reuse all the colors define till my dynatrace client is open. If I reopen dynaTrace client, I have to redefine all colors I want to use for charting.
Request if there a way to safe it for reuse.
We also have our company file to upload the color palette settings. If that can be used.
Otherwise if we have option of selecting recently used colors would be good.
Not sure if this feature would directly address your question, but under any measure you have/created you can define a custom color under the Details tab of the edit measure screen. Picking those key measurements and defining a color via the measure configuration tab may prove useful here. Hope this helps.