Inkyphat red- tried cleaning, whited out, now dark black/red


I’m new to Raspberry Pi and so am having trouble where to start troubleshooting.

I have the 3B+, Raspian 9.4 and Python is version 3.5.3

I was able to use “ red” but it turned to white, then to red black and seems stuck like that.

So I am concerned that my Inkyphat has a hardware problem.

Where should I start to figure out if that is the case?

Thank you!