但它的挑颜色却相当简单，只需画一个一个长方形的撑住色相环；这样，矩形的四个角就会各压住一个色相。

Picking the colors for these is fairly straightforward, one simply draws a rectangle over the color wheel; each of the corners anchored to a particular hue.

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有两个横长方形和一个垂直矩形。

There are two Horizontal Rectangles and one Vertical Rectangle.

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使用矩形工具画一个长方形，填充任何颜色都可以。

Make a rectangle with the rectangle Tool (any color) and Rasterize it.

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