0.67.0 - # Horizontal Slider, Background Opacity control via Entity & performance updates 🎚️✨

A new bottom-edge slider strip you can attach to any one entity on the
card... no more popping into more-info just to nudge a number.

🎚️ Horizontal Slider

Opt in per-entity with a slider block. The first entity in entity /
entities that declares one drives the strip — thanks @benjycov.

type: custom:room-summary-card
area: office
entities:
  - entity_id: input_number.desk_height
    slider: {}

Style options (bar is the chunky full-width default, ha falls back
to the standard HA slider):

- entity_id: number.fan_speed
  slider:
    style: ha

Already showing the entity in entities and don't want a duplicate
icon? Hide it from the grid and let the bar represent it:

- entity_id: light.bedroom_ceiling
  slider:
    style: bar
    hide_icon: true

Supported domains today: counter, input_number, number,
media_player (volume), and light (brightness — drag to 0 turns it
off).

Full docs and more examples:

• Slider Configuration

No breaking changes — existing cards render exactly as before until you
add a slider block.

🌊 Entity-driven background opacity

background.opacity can be an entity ID as well as a percentage. The
card follows that entity’s numeric state (expected 0–1, e.g.
occupancy probability or a normalized level) and refreshes the
background fade whenever the state updates — thanks @bsevigny — fixes
#409

type: custom:room-summary-card
area: living_room
background:
  image: /local/images/living-room.jpg
  opacity: sensor.living_room_occupancy_probability

Full write-up: Background Configuration — Entity-driven opacity

🧪 Background & Opacity logic refactor

Some delicate plumbing behind icon_background, entity_picture, opacity, and
the card-level background image got moved from JS properties into CSS
selectors. Behavior should be identical... but if a background disappears
or shows up somewhere it shouldn't, please open an issue and I'll take a
look. Sorry in advance if it bit anyone. 🙏

⚡ Performance: scoped state updates

If you have several room-summary-cards on the same dashboard, every
Home Assistant state change used to wake up the sub-components of every
card — each card was receiving the other cards' update events. With many
cards and many entities that adds up to a lot of redundant work each
tick.

State-update events are now scoped to the card that emitted them, so
each card only refreshes its own children. Should be invisible
behaviour-wise — just less churn, especially on busy dashboards. No
config changes needed.

Also we cache several things related to theme and area statistics, as to not recalculate each time - thanks @guillochon!

---

• chore: bumps version to 0.67.0 by @gh-action-bump-version
• code smells by @warmfire540
• cache theme and area stat counts - thanks @guillochon! by @warmfire540
• scope hass-update events to card shadow root - thanks @guillochon! by @warmfire540
• opacity control via a sensor - thanks @bsevigny! by @warmfire540
• chore: yarn (deps-dev): bump jsdom in the all-dependencies group (#426) by @dependabot[bot]
• chore: yarn (deps-dev): bump jsdom in the all-dependencies group (#424) by @dependabot[bot]
• chore: yarn (deps): bump the all-dependencies group with 3 updates (#423) by @dependabot[bot]
• horizontal slider - thanks @benjycov! by @warmfire540
• basic pw tests addedy by @warmfire540
• chore: yarn (deps-dev): bump the all-dependencies group with 3 updates (#421) by @dependabot[bot]
• chore: yarn (deps-dev): bump @types/sinon in the all-dependencies group (#418) by @dependabot[bot]

What's Changed

• chore: yarn (deps-dev): bump @types/sinon from 21.0.0 to 21.0.1 in the all-dependencies group by @dependabot[bot] in #418
• chore: yarn (deps-dev): bump the all-dependencies group with 3 updates by @dependabot[bot] in #421
• chore: yarn (deps): bump the all-dependencies group with 3 updates by @dependabot[bot] in #423
• chore: yarn (deps-dev): bump jsdom from 29.0.2 to 29.1.0 in the all-dependencies group by @dependabot[bot] in #424
• chore: yarn (deps-dev): bump jsdom from 29.1.0 to 29.1.1 in the all-dependencies group by @dependabot[bot] in #426

• Horizontal Slider, Background Opacity control via Entity & performance updates 🎚️✨ by @warmfire540 in #422

Full Changelog: 0.66.0...0.67.0