Looking for plugin to differentiate Octoprint instances

I couldn't find anything by searching Dashboard, display or labels.

I have two Raspberry Pi's.
I want to make it idiot proof visually that I am connected to the right instance.
Something as simple as a different background colour, or more obvious like ability to put printer name in the Top display bar.

Is there anything like this already?

Thank you

The default appearance settings has a title that you can change and my custom background plugin could be used to have different images. UI customizer would be another option to completely have different themes for each.

ah, champion. under appearance, it also has the colour options.
Of all the years I have used Octoprint, I had never clicked those options.

Thank you.