Just learned that you can directly provide a title for a vertical-stack. Until now, I always added a mushroom-title-card at the beginning of every new stack like that:
type: vertical-stack cards: - type: custom:mushroom-title-card title: Lichter
But as you can directly provide a title for the vertical stack, you can get rid of this now unnecessary title card. The title can only be set via code editor.
The only difference is the smaller gap between title and content, which in my opinion looks even better this way.
type: vertical-stack title: Lichter