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/6b1ac44aeaab8eabe2c2aef8ccf2d4955ab0be2d/web/images/treeitem-collapsed.png)