A newly opened document.
A newly opened document that has been zoomed in (with the middle mouse button).
The legend.
A parent element with expanded (i.e. visible) children.
The green information in the bottom right fades in, shows the selected node's position in the hierarchy, and fades out.
When a text node is selected, its data can be edited at the bottom of the screen.
Empty text nodes (boxes with empty glasses on them) are easy to spot.
Isolating a node shows only the path from the top of the document that leads to the selected node.
Results of a search for the word "date."
Expanding the entire tree gives a broad-based view of how the document is structured.
Showing the selected node's raw XML data (including the data of all of the elements below it in the hierarchy).