Release v1.2.1

Piotras Smart Button — Release Notes v1.2.1

🐛 Bug Fixes

Battery icon without entity_battery_state

Fixed a bug where the battery icon (which dynamically changes based on charge level) was not displayed when the sensor had device_class: battery but no separate entity_battery_state was provided. The card now automatically detects the battery sensor and updates the icon without any additional configuration.

# entity alone is now sufficient — icon works automatically
entity: sensor.lenovo_battery_level

Power bar — correct gradient at partial fill

Fixed a bug where the power bar gradient (green→yellow→red) always appeared fully filled at 100% regardless of the actual value. Restored dynamic background-size calculation both on initial render and on every state update.

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⚡ Performance Optimizations

Changes aimed at improving scroll smoothness with a larger number of cards on the dashboard (tested with 25 cards).

Removed clip-path from .card

Replaced with will-change: transform. The combination of clip-path and an external box-shadow caused the browser to create a separate compositor layer for each card, significantly increasing GPU load during scrolling.

Removed backdrop-filter: blur from inner elements

Removed background blur from .icon-wrap, .slider-zone and .service-bar-zone. The backdrop-filter effect is computationally expensive and caused noticeable slowdowns when many cards were visible simultaneously.

Shortened transition: filter on .card-bg

Background filter transition duration reduced from 0.4s to 0.25s and will-change: filter added for better browser-side optimization.

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🎨 Visual Changes

Removing backdrop-filter from the icon circle and the bottom bar results in a minimal visual difference — these elements are now "solid" instead of frosted glass. The change is barely noticeable during normal use and is a justified trade-off in favor of performance.