WNBg
From SAP Enable Now Wiki
Scope
Web Assistant parameter, specified either in the URL or in the Web Assistant parameters in the linked application.
Purpose
Used to specify the background color for hovered-over tiles on the What's New page of the Carousel. (Effectively, this is the equivalent of accentBg, but for What's New.
Usage
Specified as:
WNBg={RR,GG,BB}
where {RR,GG,BB} are the comma-separated decimal RGB values of the required color (so “255,0,0” for red). (You can specify them as hex values [e.g. #FF0000] in the application – but obviously using a # wouldn’t work in a URL.)