Matplotllib 色の指定
https://pythondatascience.plavox.info/wp-content/uploads/2016/06/colorpalette.png
黒："k" or "black"
白："w" or "white"
赤："r" or "red"
青："b" or "blue"
黄："y" or "yellow"
緑："g" or "green"
シアン："c" or "cyan"
マゼンタ："m" or "magenta"
グレー："grey" , "lightgrey"
colorlist = ["0.3"] ？？？