I don’t know why this was downvoted, I agree that this is a highly unusual configuration. Why render to a frame buffer with 2x the pixels in each direction va the actual display, only to then just scale the whole thing down by 2x in each direction?

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eptcyka 2 days ago | parent | next [-]

Because Apple no longer implements subpixel rendering for fonts?

	▲	Rohansi 2 days ago \| parent [-]
		Supersampling the entire framebuffer is a bad way to anti-alias fonts. Especially since your font rendering is almost certainly doing grayscale anti-aliasing already, which is going to look better than 2x supersampling alone. And supersampling will not do subpixel rendering.

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mlyle 2 days ago | parent | prev [-]

Because it's a decent way to get oversampling.