How to plot figure2?

[zqx951102]

Hi, thank you very much for your interesting work. I have some questions to ask you. I don't know how to draw the table like Figure 2 in this paper, is this graph directly generated by latex code? Or do you draw the picture first and then put the table together? Also, I don't know how to generate colored circles and triangles in latex. Could you please give me some of your codes? Or examples, thank you very much, looking forward to your reply!