[ feature ] Support ComfyUI themes ( Color Palettes )

[JorgeR81]

Most ComfyUI themes ( Color Palettes ) have dark tones, so the Controller can be used with them.

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But the light theme does work very well.

The new Frontend has a button, to toggle the "light" theme directly, so people will try it ...

[JorgeR81]

Just a reminder that colorPalettes will be moved to ComfyUI core:

• https://github.com/Comfy-Org/ComfyUI_frontend/issues/1363