entropy edges no longer listed ?

On binwalk 3.1.0 as packaged on Arch, binwalk -E is not listing entropy edges anymore ? All it does is

Calculating file entropy...entropy graph saved to: test.png

Also, didn't binwalk used to open a window with the graph ? Extra steps... and also, the Y scale isn't showing numbers anymore ?

Not sure when this all regressed; haven't used binwalk in a while...