Thank you for the very quick overview. I did not know about coolors. Personally I try not to overcomplicate things and to get lost in colors. So in 9 out of 10 cases I choose scale_color_colorblind() from the ggthemes package for a discrete palette. Not beautiful but very usable. Personal side note: I see how and why you try to keep your videos short and to the point. For my individual personal taste they could go a little deeper and take some more time, but that is just one voice.
