I extensively use the Xfce panel to monitor my system. I like having a picture of its state without having to launch any diagnostic tool. This proves to be quite useful! Also, should my computer experience a sudden problem and not respond anymore, I can glance at its last state before rebooting.
I have never liked the excess of colors that is present on the bar, though:
![The top panel on my Xfce session showing multiple sensors and how it shows too many distracting colors.](http://blog.alvarezp.org/wp-content/uploads/2020/06/top-bar-sensors-1024x88.png)
The top panel on my Xfce session showing multiple sensors and how it shows too many distracting colors. Taken from My laptop was broken into.
This takes away from noticing effortlessly whenever something out of the ordinary is occurring. So I put everything (or as much as possible) in gray shades. I managed to change its appearance quite easily: