I am a postgraduate student in mathematics. I am writing my thesis, for which I need to prepare some Matlab plots and figures. I had sent some plots to my supervisor, and he suggested to use black for the line color because most journals want to make sure that plots look good when printed black-and-white.

I am curious to know some other advice for figures like line width, styles, colormap for surface and contour plots, the figures’ dimension, etc.