Introduction
In cPanel and WHM version 96, we added a new style, Glass, to the cPanel index page. This added a notification to the top of the cPanel interface asking for feedback:
Procedure
You can disable the Glass feedback banner via the cPanel Skeleton Directory by running the following commands:
mkdir -pv /root/cpanel3-skel/.cpanel/nvdata/
echo -n "1" > /root/cpanel3-skel/.cpanel/nvdata/xmainSwitchToPreviousBannerDismissed