Optional alignmentThe content alignment of the layout.
Possible values are documented in SplitLayout.Alignment.
The default is 'start'.
Optional layoutThe accordion layout to use for the accordion panel.
If this is provided, the other options are ignored.
The default is a new AccordionLayout.
Optional orientationThe orientation of the layout.
Possible values are documented in SplitLayout.Orientation.
The default is 'horizontal'.
Optional rendererThe renderer to use for the accordion layout.
Optional spacingThe spacing between items in the layout.
The default is 4.
Optional titleThe section title height or width depending on the orientation.
The default is 22.
An options object for initializing a accordion panel.