Buttons derived from tasks

A profile's task list generates project filter buttons, tag filter buttons, and some buttons in the tag editing UI.

I would like to be more deliberate in this, possibly parsing some configuration from a .taskrc from the following set:

complete.all.tags
list.all.projects
list.all.tags
summary.all.projects

Or offering settings in the app that are comparable.

At the moment, I think I wrote the app to only offer buttons from pending tasks, except for selected filters that match no tasks, which user needs a way to remove.