Breadcrumb mode is a useful companion to imenu. The usability could be increased if mouse click actions in the tabline would provide better defaults:
- When clicking on the deepest displayed node (leaf), provide a search where to jump to (as it is now)
- When clicking on a non-leaf and this item is not a type bucket (method, typedef) but a concrete item, jump to that item, otherwise provide the search as in item 1
Especially point 2 would be helpful when navigating hierarchical structures like the outline of a markdown or org file.
Best, Johann