It appears to me that the `expanded/collapsed` part of the names got switched around, since I'd expect the following convention: - `v` == expanded - `>` == collapsed
128 B
9x9px
128 B
9x9px
![](/Sakurai/pdf.js/raw/commit/af61d48899f9751489fffd4eb767b0b21973342b/web/images/treeitem-collapsed.png)