It is currently possible to view the diff for a branch or commit in a folder view which contains the changed files.
I would like to be able to browse the whole file tree for a commit.
(i.e. show the tree-ish for that commit. Like the tree view in tig)
The corresponding command line command would be
git ls-tree --name-only -r <commit-ish>
Sometimes it is easier to understand the state of a commit if you can see how all the files were at that point in time.