User:Homunq/activity ring filters and sidepanes

The home view would always have a (filtered) set of activities in a ring around the center. The default filter would be "favorite". The current filter would be indicated in the search box and in the center of the ring. (I'm not satisfied with the "superimposed over xo icon" idea; it would probably be better to replace the center icon completely. But then the default view would have a star in the center, which is not as good for branding.)

A pane on the left would have iconic shortcuts to some common filters, including favorite, recent, mine, and tags. Tags could be assigned by dragging to this pane.

(Digression: another possible filter would be "currently running". The pulldown for a currently running activity/instance would include halt and view source, just as the pulldown from the frame)

A pane on the right would show all activities. It could include a horizontal scrollbar (not shown.) If the current filter had an excessive number of activities, the ring would include a ... icon and the right pane would open by default.