Feature Collapsible

Collapsible deck

With collapsible: true, tapping the already-active tab folds the content away and leaves just the tab bar. Tap it again, or pick any other tab, to open it back up. This helps on phones, where a tall deck can push everything else off screen.

Config keys: collapsible (boolean, default false), start_collapsed (boolean, default false, only with collapsible)

type: custom:tabdeck-card
collapsible: true
start_collapsed: true    # open the dashboard with only the bar showing
style: segmented
align: justify
tabs:
  - name: Climate
    icon: mdi:thermostat
    card: { ... }
  - name: Lights
    icon: mdi:lightbulb
    card: { ... }

Behaviour

• Active tab tapped → folds or unfolds. Another tab chosen (tap, keyboard, auto-select, …) → unfolds and switches.
• While folded, the selection indicator is dimmed, and the card reports a size of 1 row to masonry layouts.
• The folded state isn't remembered. It resets to start_collapsed on reload.
• Both options are toggles in the visual editor.