Change jGrowl redirect popup window 2.5.0

If you Under Preferences / General Settings

Use jGrowl redirect*
and replaced old redirection by an jQuery redirection = "YES"

And you want to change color etc. on the popup window

root / xoops.css
Edit from line 104

Remove header if this is present in the popup window

xoops_lib\Frameworks\jquery\plugins\jquery.jgrowl.js

Exclude line 137 and line 190

Line 137 /* header: '', */
Line 190 /* '' + */

Took a while to find it, may be useful for someone