Randomizing patterns

Irritated by the many pseudo-random patterns that I encounter on a daily basis, and intrigued by the possible surprises that might appear, I started creating 'real random' patterns. No more random-looking patterns that are repeating after all when you look closer, but patterns where all parts are really different! Also, every pattern is truly unique. Because of all the random effects, it is practically impossible to make exactly the same pattern again. At first I started randomizing the locations of the shape corners, but random changes in the (shade of) the colors followed soon!