Name of file that contains background image used for every row in toolbar. If value is not set and UseDefaultStyles property of UseWebHtmlEditor is enabled, then "backimagerow.gif" is used automatically. To disable that automatic default, value of property can be set to any string with length less than 3.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2