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
125 B
9x9px
125 B
9x9px
![](/Sakurai/pdf.js/raw/commit/78eb73004fbaab2acf64b0e2a51d1309b66c19ab/web/images/treeitem-expanded.png)