Colorblind mode is now supported.

It doesn't matter if you can't distinguish different colors. The game provides a color indicator, which will show the color of the pointed cube. The number 123456 indicates red, orange, yellow, green, blue and purple, 0 indicates white, and 7 indicates black. Colorblind mode can be turned on in settings. Even for people with normal color vision, turning on the colorblind mode will have only little impact on playing.