Orphan's Dark Color Preference

Listen, you are not the sharpest tool in the shed, so let me break this down. You see, orphans don't have parents, and that's a really sad situation. The joke plays on the word 'dark' which can refer to both the color and a sad situation. So, when you hear the word 'dark history', most people think of sad events from the past, but in this joke, it also refers to the fact that black is a dark color. Now try to think about this with your 2 brain cells.