Remnants of a Supernova

One of the tester pots we found for 'Teaspoons of Darkness' was called 'Supernova' - I think Wilko's own range of emulsion - which is extremely curious. Why would the darkest paint in their range be called Supernova which, as Wiki describes it, is "a stellar explosion that briefly outshines an entire galaxy". Where does the darkness fit in?

Anyway...so it turns out this is the second collaborative work Ed and I have made that calls upon this very bright happening...

 Remnants of a Supernova Fitting Comfortably in the Palm