He cited color theory. Isn't color theory made up of an arbitrary choice of three colors? Additionally the color spectrum is one dimensional because it's really just frequency of light. Geometric symmetry on an arbitrary mapping of the actual one dimensional concept of color to a two dimensional plane doesn't really "improve" anything. If you like it, you like it because of your opinion, please don't cite any pseudo…
"Dracula Pro" looks a lot like this with a different font (which is also an option in Material Theme)