bubHeadFg
From SAP Enable Now Wiki
Scope
SAP Companion parameter, specified either in the URL or in the SAP Companion parameters in the linked application.
Purpose
Used to specify the text color of the header in Help Topic bubbles and Guided Tour step bubbles. This only takes effect for Help Topics and Steps for which the Show Header property has been selected.
Usage
Specified as:
bubHeadFg={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.)