To preview the different combinations of sap.m.ToolbarDesign and sap.m.ToolbarStyle, see the OverflowToolbar - Design and styling sample of the sap.m.OverflowToolbar control.
Properties Overview
Node
Description
sap.m.ToolbarDesign.Auto
The toolbar can be inserted into other controls and if the design is "Auto" then it inherits the design from parent control.
sap.m.ToolbarDesign.Info
The toolbar appears smaller than the regular size to show information(e.g: text, icon).
sap.m.ToolbarDesign.Solid
The toolbar has a solid background. Its content will be rendered in a standard way.
sap.m.ToolbarDesign.Transparent
The toolbar and its content will be displayed transparent.