这些扩展提供了诸如位图操作，画笔，抗锯齿和越来越复杂的Primitive渲染中不同像素深度格式，Alpha Blend的支持。

Some of these extensions included different pixel depth formats, alpha blending support in bitmap operations and brushes, anti-aliased primitive rendering and more complex primitive rendering.

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如果您没有使用高达9而不是1像素的画笔工具，你会得到消除锯齿出现，这将破坏硬边像素的效果。

If you did use the brush tool at a whopping 9 pixels instead of 1, you'll get anti-aliasing occurring and that will spoil the hard-edge pixel effect.

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选择画笔工具，设置直径为400像素。

Select the Brush Tool, set the diameter to 400 pixels.

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