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Enum class that specifies the type of antialiasing to do when rendering text or shapes.
CairoAntialias::MODE_DEFAULT Use the default antialiasing for the subsystem and target device
CairoAntialias::MODE_NONE Use a bilevel alpha mask
CairoAntialias::MODE_GRAY Perform single-color antialiasing (using shades of gray for black text on a white background, for example).
CairoAntialias::MODE_SUBPIXEL Perform antialiasing by taking advantage of the order of subpixel elements on devices such as LCD panels.