OptionaldisposeCalled when the backend is done with the ghost. HTML5 fires it after the drag-image snapshot is captured (next tick); pointer fires it when the follow-cursor ghost is removed at drag end. Use for custom framework renderers that need teardown.
OptionaloffsetPixels from cursor to ghost's top-left. Default 0.
Optionaloffset
Visual specification handed to the backend. HTML5 calls
setDragImagewith(element, offsetX, offsetY)and discards the element after a microtask. Pointer wraps the element in aPointerGhostthat follows the cursor for the duration of the drag.