Easy

It comes only before, it comes only after. Rises only in darkness, but rises only in light. It is always the same, but is yet always different.

related riddles

An art-form and its colour-ful result.

My second is performed by my first, and it is thought a thief by the marks of my whole might be caught.

I can be found in seconds, minutes and centuries, but not in days, years or decades.