Get the hex string of the preset colors optimized for plotting both polygon plots and mutation scatter plots, etc. #b3b3b3', #999999', #bf812d', #aaaa55', #c51b7d', #ef6548', #33a02c', '#3f007d', '#1f78b4', #ffcc00', #fca27e', '#fb8072',
get.clonevol.colors(num.colors, strong.color = FALSE)