Home Assistant custom cards
What a custom card actually is, what HACS does and does not do for you, and how to tell which cards will still work after the next Home Assistant update.
2 packages, all installable through HACS
Mushroom5.1kA coordinated family of compact cards with visual editors. People reach for it for the look, plus its chips and templating.
Bubble Card4.5kA single card type that takes the shape of whatever you point it at, from a light slider to a media player, plus pop-ups that let one dashboard hold a page per room. Most people install it for the look and the pop-ups together.