I don’t know why your plots are not saved with unicode. Here are my saved files:
pdf: https://github.com/empet/Datasets/blob/master/Images/save-unicode1.pdf
and png:
I don’t know why your plots are not saved with unicode. Here are my saved files:
pdf: https://github.com/empet/Datasets/blob/master/Images/save-unicode1.pdf
and png: