Usually, I don't let go of a lot of my time to visual aspects of my projects. But the current situation gives me a bit more time to do some visual upgrades.
I printed a case for one of my Raspberry Pis, the one which runs Node-red and connects all of the third-party apps to my Software PLC and HMI.
The case is from Thingiverse: https://www.thingiverse.com/thing:3437219
To have not only a visual benefit i decided to add two status LEDs which are connected to GPIO Pins and can be controlled direct by Nodered.Currently the blue one gets lit on every status change of devices (light on/off) and the red LED is reserved for network or system errors.