Returns true when the profile sprite <svg> is present in the DOM.
Lets callers (e.g. the adapter's post-style-change hook) skip
registerSpriteIcons — and its "sprite not in DOM" warning — for
profiles that ship no sprite, without duplicating the selector.
Returns
truewhen the profile sprite<svg>is present in the DOM.Lets callers (e.g. the adapter's post-style-change hook) skip registerSpriteIcons — and its "sprite not in DOM" warning — for profiles that ship no sprite, without duplicating the selector.