Is there a way to add colormap to LayerControl?

First of all incredible progress from the last time I have checked folium, my respect to the team!

I am trying to use some examples from Colormaps.ipynb and it seems like the colormap is not recognised by the LayerControl as one of the layers. My question have two parts:

• Is there a way to make LayerControl aware of the colormap?
• Most importantly is there a way to combine the layer created, say, with GeoJson and colormap, so they are switched on and off together in the LayerControl.

At the end I would like to have 2 layers on one map, but they should have different colormaps.

从 Colormaps.ipynb 以及报告中提到的 LayerControl 和 GeoJson 入口点开始。确定 colormaps 是否可以表示为 LayerControl 图层，以及 GeoJson 图层是否可以与其 colormap 分组。完成的标准是：已实现或明确记录支持两个可独立切换的地图图层的行为，并提供一个展示结果的示例。