Blink Implementation of View Transition Layer Participation

The provided text explains how the Blink rendering engine manages elements during a View Transition API lifecycle. It details the criteria for participation, where elements must be assigned a unique view-transition-name to be captured as snapshots for animation. The documentation highlights that participating layers are temporarily suppressed in the standard DOM and replaced by pseudo-elements in a top-layer overlay, while non-participating layers continue to render normally. Integration with the Chromium compositor is emphasized, showing how GPU textures and property trees are used to create smooth visual transitions. Additionally, the sources describe internal tracking via the ViewTransitionStyleTracker and offer strategies for debugging transitions using DevTools and specialized CSS.