By email:
The new icon is huge… and this may be fine for some. But it’s so distracting - the previous icon was fine in both size and orientation.
You can go back to the original icon by pasting in Terminal the command:
defaults write com.pilotmoon.popclip ClassicStatusIcon -bool YES
then Quit and restart PopClip. (If using Setapp edition of PopClip, it’s com.pilotmoon.popclip-setapp instead.)
(FWIW, the new icon is 2 pixels narrower but 8 pixels taller — old is18x10, new is 16x16)