I was under the impression that by toggling on Theme Groups under the Strategy Pyramid viewer, from the Platform Terminology admin area that they would appear in the pyramid.
I've enabled Theme Groups for the Super Admin role, associated Themes to the Groups, epics to the themes, features to the epics and all work items to consistent PIs, but nothing appears in the pyramid.
Is the only place to review Theme Groups within the Worktree, using the by Theme Groups view?