Color plots may look nice, but you will need your plot in black and white if you are going to submit it to a journal (plus color charts don't get you more marks for a dissertation, and in my opinion don't look as good as those in black and white). So instead of colors, you will need instead patterns. Watch and see how this is done. Won't take long.
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https://www.youtube.com/watch?v=MihVe0GMElU