Why has the 1Password app icon on my Mac turned all blue and how can I get the regular icon back?

This is somewhat problematic. I switched the channel in the app to Production but as noted it still downloads (and then applies) beta updates. Even when set to manual update check it doesn't;t just tell you there I an update, it downloads and applies it so once you check you are committed to take the update (kind of unhelpful). How can I safely revert from Beta to Production without risking any incompatibilities?