[feature]: It would be nice to have a slider that mimics the brightness levels in the PBs implemented in FS

[caleyg]

A remarkable feature I have seen in the Pixel Lights for PB app on Android is the ability to control the brightness for all PBs in the network.

This would be an excellent addition to FS to easily sync the brightness levels across their devices. If there are hints on how to implement this or examples of how this is controlled, I could take a stab at it to see how it would behave.

[caleyg]

I found the request in the websocket on the PB for brightness and it looks like the range is 0-1 using float, and its request looks like {"brightness":0.6,"save":false} and {"brightness":0.6,"save":true} just working out the UI bit now

[caleyg]

included in this PR #44

[gaitskell]

Is this brightness control now accessible from the standard (main) installation? I don't see it as an option?