默认情况下这些颜色方块是空的。

By default these color squares are empty.

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橘黄色的颜色方块的一部分，电气点火系统的汽车。

The orange coloured box is part of the electrical igniter system for the motor.

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我用了一张有不同颜色方块的纹理图片，拉伸它以获得的更多的方向感，然后调节其尺寸，让它和建筑的柱间距保持一致。

I took a texture of different colored squares, stretched it to give more directionality, and then scaled it to work with the column spacing of the architecture.

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