The major part of the window shows a picture of the selected event. Here are the tracks of all particles in the event shown with coloured lines. A computer-based reconstruction program has grouped the particles into two or more groups. The particles in each group are marked with a common colour (red, green, blue, yellow, etc.).
Tracks from charged particles are shown with bright colours. These tracks are often curved because of the magnetic field in the detector that bends the trajectories of charged particles.
Neutral particles do not leave tracks in the tracking detector, but they can be located with the help of energy depositions in the calorimeters. In WIRED, neutral particles are shown as straight lines in a dark shade.
You can look at the event from different angles and distances by using the mouse. Press down the mouse button and move the mouse pointer over the picture to rotate or zoom.