Accent-coloured indicator

Give each tab its own accent colour and the selection indicator, icon, and label adopt that colour when the tab is active. Turn it off for a single theme-coloured indicator.

Config key: accent_indicator (top-level boolean, default true) · Per-tab: accent (CSS colour)

type: custom:tabdeck-card
accent_indicator: true        # default; set false for a uniform indicator
tabs:
  - name: Climate
    icon: mdi:thermostat
    accent: "#e8743b"
    card: { type: thermostat, entity: climate.living_room }
  - name: Lights
    icon: mdi:lightbulb-group
    accent: "#3b82e8"
    card: { type: entities, entities: [light.kitchen] }
  - name: Eco
    icon: mdi:leaf
    accent: "#2faa54"
    card: { type: entities, entities: [sensor.power] }

Behaviour

• When accent_indicator: true (default), the moving indicator takes the selected tab's accent. As you switch tabs the colour follows.
• A tab without an accent falls back to the theme's --primary-color.
• When accent_indicator: false, the indicator is always --primary-color, regardless of per-tab accents.
• Works with all three bar styles (underline, pill, segmented).

Toggle it from the Colour indicator by tab accent switch in the visual editor.