A fast-spinning neutron star whose magnetic axis is tilted off its spin axis, so two opposed radio beam cones wheel around like a lighthouse and flare brightest each time a pole swings through our line of sight — the periodic pulse. A blue-white core blazes at the centre inside a twisted dipole field-line glow and a faint relativistic accretion haze. It spins and pulses on its own; scroll drives the spin, the cursor tilts the axis, and a press throws a magnetar glitch that jitters the phase and colour.