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
149 B
18x18px
149 B
18x18px
![](/Sakurai/pdf.js/raw/commit/915eac3d2069201687a3222866d8cbc9a17bb3fd/web/images/treeitem-collapsed@2x.png)