OptionalcontainerOptionaldescriptionBody description, rendered as HTML at the top of the panel
body above the controls. Examples are trusted authors, so no
sanitisation pass is run — pass plain text or trusted markup.
Wrap paragraphs in <p> for proper spacing.
OptionalidStable id, used to namespace the panel's localStorage key
for drag-position + closed-state persistence. Each example
should pass its own example id so two panels don't share a
slot. Default "infoPanel".
OptionaltitleHeader title. Default "Info".
DOM container for the panel + pill. Defaults to
document.body.