It's purpose is to learn to fire a single output neuron when the corresponding input neuron if fired. The network may be trained automatically or manually.
Neurons are circles in various shades of pink.
The brighter the shade, the more active the neuron is. Neurons which are not firing at all are black. Connections are represented by rectangles running between neurons. The stronger a connection, the thicker the rectangle. The Mimic network has four input neurons on the left, two hidden layer neurons in the middle, and four output neurons on the right.