Feature request: Slider Color

[JensRudolph]

Hello developers,

can you please add the possibility to change the color of the light if its turned on, like you are doing it with the brightness right now.
For example a button that allows me to change from brightness to color mode in the slider.

Also can you maybe add the possibility to make a bubble card look like this. So the icon is in the middle and under it the text.

Much thanks
Jens