Newb light card help

Quite new to HA, I wondered is there a way to configure a light card like below?
i.e. show the favourite colours on the first screen, instead of having to press/hold to see them.

Also, is there some way to see the full yaml of the light card, as there is with an automation that you can switch between the visual and yaml editors?

Any tips or pointers welcome :slight_smile: