name
Any name to identify the gallery for admin use only. Not show on the public pages.
description
Any text to identify the gallery for admin use only. Not show on the public pages.
type
select from one of the layouts, this formats the images and adds controls.
viewer width / viewer height / thumbnail width / thumbnail height
Parameters to size the gallery. Their use depends on the type being used.
order by
A selection of ways of ordering the gallery, eg, by date, name, size.