Within the main view of a Shrimp or Jambalaya display, there are five modes for drawing the node labels. These are (mouse over for an example):
For all modes you may also select the font face of the labels and the font size for the label of highest level node that is visible. For the modes (Above Node - Level and On Node) you may also select the maximum number of levels of visible labels and whether or not to fade out lower level labels. As well, you may want to see labels with an opaque background. Change these settings in the Tools->Options->Label Options menu.
The Fit To Node mode attempts to fit a label within the node boundaries while retaining a minimum font size. If the text does not completely fit, an ellipsis (...) shows that there is additional text. Zooming in (Magnify) will reveal the full label text. Wrap To Node is similar to this except that text is wrapped to to the next line if there is not enough space on a single line.
When using the Above Node - Level or Above Node - Fixed label modes you can hold your mouse over any node that doesn't have a label and the label will appear above the node. Also in the On Node mode any label that is too small to read you can hover your mouse over it and a readable label will appear above the node. (New!)
TIP: if your display shows a lot of nodes, the On Node setting is similar to turning labels off (and will unclutter the display).
The Label Options panel is found in the Tools menu under Options, and also in the extreme lower center of the main view.