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Behavior comparison

Skeleton shimmer vs State transition

Decisive difference

Skeleton shimmer addresses optional loading decoration; State transition addresses persistent state feedback. They can be combined when both needs apply.

Skeleton shimmerChoose Skeleton shimmer if you need optional loading decoration.
State transitionChoose State transition if you need persistent state feedback.

See the nine dimensions See the sources

Decision

Family question

Does motion explain a change, report state, or only decorate?

Nine dimensions

Dimension	Skeleton shimmerSkeleton shimmer	State transitionState transition
Trigger	Explicit activation to demonstrate optional loading decoration.	Explicit activation to demonstrate persistent state feedback.
Modality	Non-modal; surrounding content stays usable.	Non-modal; surrounding content stays usable.
Placement	Inside a bounded specimen; no page-level decoration.	Inside a bounded specimen; no page-level decoration.
Interactivity	Adjust one parameter for optional loading decoration; pause or use a static result.	Adjust one parameter for persistent state feedback; pause or use a static result.
Focus	Focus stays on the activated control. Reset restores focus to its button.	Focus stays on the activated control. Reset restores focus to its button.
Dismissal	Pause freezes playback; static fallback cancels it. Leaving the specimen cancels its animation and removes listeners.	Pause freezes playback; static fallback cancels it. Leaving the specimen cancels its animation and removes listeners.
Accessible role	button + select + checkbox + status	button + select + checkbox + status
Use case	Demonstrate a loading placeholder with reserved space and persistent Loading text.	Confirm a completed local action with persistent text and an optional short fade.
Mobile behavior	Native touch controls; system motion reduction always wins.	Native touch controls; system motion reduction always wins.