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/f80a6efce3efc3694cc2fe7c0391262088266a3f/web/images/treeitem-collapsed.png)