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.

youdao

安妮：会旗的样子是不是这样的，长方形，白色无边，中央有五个相互套连的圆环，环的颜色是——看！

Annie: the flag is rectangle. It is white without edges, isn't it? It has five-overlapping rings in the middle. The color of the rings is... Look!

youdao

安妮：会旗的样子是不是这样的，长方形，白色无边，中央有五个相互套连的圆环，环的颜色是——看！

Annie: the flag is rectangle. It is white without edges, isn't it? It has five-overlapping rings in the middle. The color of the rings is... Look!

youdao