What does "croma"mean? I watched a youtube violin video which has a comment that asks"Is the landscape real or croma?" I know it means whether the musician is really at that place or she's just in a studio with that background on a screen. But I looked up the dictionary and there is no English word as croma. Is that a typo or a loanword from Italian? And are there other brief ways to ask the same question? Thank you in advance.