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
128 B
9x9px
128 B
9x9px
![](/Sakurai/pdf.js/raw/commit/3bcf9187ec586f5e7227a05bd6e44c129e6ec083/web/images/treeitem-collapsed.png)