FrameMarket - What do I do with it...?

Hey,

Maybe I'm being incredible simple here... But I just decided to try out FrameMarket and I get that it's a parent theme (if I'm not mistaken), but what on earth do I do with it? Where is my visible theme actually supposed to come from?

Hope someone can shed some light on this for me. I'm definitely fumbling around in the dark right about now. Haha.

Scott. =)