OverlayDialog Dialog implementation based on the Overlay. If used in a Shell it leaves the Tool-Palette, Pane-Bar and Header-Items accessible. sap.ui.ux3/Overlay Determines the width of the Overlay Dialog. If the width is set to "auto" it is always 50% of the overlay width. Determines the height of the Overlay Dialog. If the height is set to "auto" it is always 50% of the overlay height. Content for the OverlayDialog.