The process-working animation is not included In oxygen icons it is in /usr/share/icons/oxygen/22x22/animations/process-working.png It's the spinner used e.g. in web browsers when a page is loading, or in my case by the ubiquity installer when connecting to wifi. It's part of freedesktop.org icon-naming-spec It could well be the Oxygen one can just be copied over to Breeze, it doesn't have much colours Reproducible: Always
*** This bug has been marked as a duplicate of bug 360304 ***