Well first of all, I’m sorry - I’ve gone back to Sublime for my default editor. I have changed all my file associations back to Sublime, so whenever I open a .js, .txt, .whatever - they correctly open in Sublime.
HOWEVER - all my file ICONS are still the Atom logo, and I can’t get them to go away. I have completely uninstalled Atom, I have rebuilt the LaunchServices database…out of ideas now.
It’s not specific to Sublime, either. If I try to set a file to open with TextEdit by default, the Atom icon remains.