OptionalacceptsOptionalchildrenOptionalclassOptionalcontainerPromotes this panel to a container with the given strategy. Lets it host
nested presets (<Panel container={...}><Panel /></Panel>). When absent,
Panel is a leaf — nested presets will fail with "parent has no container".
Optionaldata-OptionaldraggableWhen true, wraps the panel's rendered content in a DragHandle so the user can drag this panel to another acceptsDrops target.
OptionalhiddenOptionalidOptionalmetaOptionalorderOptionalparentOptionalplacementOptionalstyleOptionaltitle
When true, registers this preset's wrapper element as a drop target so consumers can drag items into it. The element must have a container capability (Zone and Group always do; Panel needs the
containerprop).