SoBoxHighlightRenderAction(3) on Linux
The text 773b731f4ff8, as Debian 6.0 (Squeeze) shipped it.
The SoBoxHighlightRenderAction class renders the scene with highlighted boxes around selections. This action performs the same tasks as its parent class, SoGLRenderAction, with the added ability to render highlighted bounding boxes around geometry in selected nodes. This is a simple but convenient way of giving feedback to the user upon interaction with the scene graph.