What is invert color for on an iPhone 4?

I'm just wondering why it's on there.

Its there to explore new things in a different way

It is for people with impaired vision. I don't know what they have to need to use that, but I know thats what its for

All it does is gives your screen "Negative" colors. You can turn it on and off whenever. If you don't know what negative colors are, it's sort of the opposite of the original colors of your screen.So, if you have black words with a white background, negative/invert color would turn it into white words with black background. You can turn it on an off whenever you want, so it's just a cool little thing to put on if your trying to adjust your screen depending on the lighting of the area your in. Also makes your wallpapers look cool: P Hope that helped.

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