This is still an awesome project, but anyone else notice the machine makes a mistake? @ 1:10, in the background, you can see a purple skittle with green ones.

This is still an awesome project, but anyone else notice the machine makes a mistake? @ 1:10, in the background, you can see a purple skittle with green ones. (Technically it we don't see it make the mistake, but it probably had made a mistake...) Awesome job! Any stats on its error rate?