a picture that opens alone

Everything above is one reel because it sits under one provider. The face below sits under the same provider and is NOT in the reel: no strip, no arrows, no counter, one picture. That is LightboxSolo, a provider around a single trigger, and the nearest provider wins. It exists because the avatar in a quote's attribution once joined the page reel and three faces became a three-slide gallery. The caption is passed explicitly: the trigger sits inside a figure whose figcaption is the attribution, and the fallback would have read “Mark Twain1876”.