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
172 B
18x18px
172 B
18x18px
![](/Sakurai/pdf.js/raw/commit/c95b9b1e1721f4fa790e93c81ed0c8f62683a22c/web/images/treeitem-expanded@2x.png)