Can you remember life before mono panel icons became the norm? Gaudy, hectic and distracting are three adjectives that spring to my mind.
Sadly not every icon set swimming about the ether comes with a set of conforming tray icons, particularly older icon sets, in which case the following script can help.
It, simply put, enables the use of default Ubuntu mono-tray icons with any icon set you wish.
The script is simple to use and you’ll find step-by-step instructions, along with the download link of course, over @ gnome-look.org
Tip | Daniel