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/9b14f8ea2a512ddf13ca6797048eeda08df380a7/web/images/treeitem-collapsed@2x.png)