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The Mac UI was inspired by early Smalltalk UIs, which had a black pointer (without outline). Most of both the Smalltalk and Mac screen was white, so a black pointer was more obvious. The Mac UI added the thin white outline so it would show up on better on the black regions of the screen (original Macs had only black and white screens). Windows possibly used ...


I don't have a definitive answer for why Apple made the decision they did. But here's an answer based on UX analysis: The pointer cursor needs two high-contrast colors to ensure it can be discerned against backgrounds of any color (eg an all-black cursor would get lost in a black background). The most neutral high contrast colors are black and white. For ...


Facebook, tumblr, soup.io and Gerrit and surely several other services use "j" and "k" keys for moving down / up.

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