Here at Toasty Games, we know that a significant portion of players suffer from color blindness, and we understand how much of a struggle even the most simplistic visuals can be for these players.
And this is why, as of our latest update, Parallax now includes a "Color-Blind Mode" option.
Below is a side-by-side comparison of the game's graphics with Color-Blind Mode turned off, and turned on, respectively. This may not look like much if you have regular vision, but to a player suffering from color blindness, the difference can be astounding.
http://imgur.com/aw0P63K
This is just one of the many ways that Toasty Games is making games more accessible for everyone. Except those who have difficulty reasoning about parallel spatial dimensions.