The and, or, and empty nodes are colored black, and function exactly as in the text. Text nodes are colored blue and represent the top level of the diagram. Phonemes are colored green and represent the bottom level. Note that phoneme nodes do not always have to represent phonemes they are simply the lowest level of the network segment. The contents of the output window is drawn from these low-level nodes.
All nodes turn red when activated.
Nodes are connected by edges, which are simply black lines. Edges also turn red when activated. The control bar contains several buttons and check boxes that allow the user to interact with the modeler. The Pass Activation and Clear Activation buttons are fairly self-explanatory they pass activation one step and clear all active nodes, respectively. The Print button outputs a textual representation to the Java Console.