A colorful field region

> A transparent rectangular field entity that shifts its hue from one color to another (maybe through any amount of colors separated by commas??) in a loop (like the rainbow spinners). If you put multiple entities near other another they'll form a single field that shifts through the colors. The transparency of the entities, the colors and the direction of the color change (position mode like in camera triggers (maybe diagonal variants too? or just letting you set the angle)) are customizable.

*Poke NeoKat for details.*

未指定文件、测试或入口点。首先联系 NeoKat，获取所请求的详细信息，包括受支持的颜色控制、透明度和方向行为。当透明的矩形场实体能够循环使用已配置的颜色，并与附近的实体正确组合时，即表示完成。

由索引模型根据 Issue 内容生成。