What does oxycontin 20 Pill look like?

Could you please describe the appearance of an oxycontin 20 pill? I'm curious to know what it looks like, as I've heard it's a powerful medication that should be handled with care. Is it a round pill, or is it a different shape? What color is it, and are there any markings or logos on it? I'm asking out of pure curiosity and to better understand the medication, not for any other reason.