Use updated stack plot color scheme
Update stack plot color scheme: https://cms-analysis.docs.cern.ch/guidelines/plotting/colors/#1d-histogramstackplot
Fig. 3 on page 13 from this paper visualizes which colours go together better:
Six colors only
["#5790fc", "#f89c20", "#e42536", "#964a8b", "#9c9ca1", "#7a21dd"]
Expanded
["#3f90da", "#ffa90e", "#bd1f01", "#94a4a2", "#832db6", "#a96b59", "#e76300", "#b9ac70", "#717581", "#92dadd"]
Edited by Stephanie Kwan