Inspired by the the theory from http://tools.medialab.sciences-po.fr/iwanthue/theory.php For more info, also see https://en.wikipedia.org/wiki/Lab_color_space
distinctColorPalette(k = 1, altCol = FALSE, runTsne = FALSE)
number of colors (>= 1). May be ineffective for k > 40.
Use an alternate color space
Preprocess color space with t-SNE to obtain distinct colors. Reduces performance.
A character vector of k optimally distinct colors in hexadecimal codes.