Change the size of gene symbol labels on x axis

[ngvananh2508]

What kind of feature would you like to request?

Additional function parameters / changed functionality / changed defaults?

Please describe your wishes

Hi, I want to change the size of gene symbol label (CCNT2P1, ...) of the rank_genes_groups_matrixplot method. I try to use plt.rcParams but it did not work. I wonder that whether another way to do this task.

Thank you so much