Oh no, Mom! Gluon appears to be ill! According to the theory of quantum chromodynamics, he/she should always QUARK in vibrant living colors (Gluon seems to like red and green). If she/he is QUARKing in black and white there's something wrong!

I suspect it may have something to do with the kick in the rear he/she received after relieving herself/himself on the front wheel of the Galactic Overlord's Harley Davidson.