v0.10.0

Unresponsive sensors? Now you can see them! With filter.unavailable: true, entities that stopped reporting or went offline appear in your treemap instead of silently disappearing.

type: custom:treemap-card
entities:
  - sensor.*_battery
filter:
  unavailable: true
color:
  unavailable: '#6b7280'  # Custom gray (optional)

Perfect for battery monitoring dashboards where knowing a sensor died is just as important as knowing which batteries are low. Unavailable entities show their state text ("unavailable", "unknown") and get a gray background by default (configurable).

Do you find the card useful? Please ⭐️ the project.