The class fix rendered the `+` but the node still would not open, and the
caret did not light on hover. `tbody th:empty { pointer-events: none }`
makes the padding cells left of a tree label inert, and a label cell whose
group key is null or "" is `:empty` too — its caret is a `::before`, which
does not count as content — so the cell received no pointer events at all.
Exclude the tree classes from that rule. `row-hover.css` reads `:empty` the
same way in six border selectors; those are a hover tint, left alone.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
4.1 MiB
4.1 MiB