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/a37ea16013819a84882eb4dafd1fdb2bb87ef362/web/images/treeitem-collapsed@2x.png)