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
125 B
9x9px
125 B
9x9px
![](/Sakurai/pdf.js/raw/commit/6cfb1e1a63cfdbb2190e583d5d8803553771685b/web/images/treeitem-expanded.png)