Preferences → Appearance → Visualizer picks Bars (as before), Radial dots
(the EQ in a circle: angle is frequency, radius is volume, moving dots
leave light-gray ghosts that fade over a set time), or Laser (a mirror on
a speaker membrane bouncing a beam onto a screen: simulated membrane
modes, D·tan(2θ) reflection, dwell-weighted brightness). Double-clicking
the panel opens it big; a click closes it.
