Average contrast spectra of all pixels for all snapshots of a given ⟨ B_z ⟩ relative to the average of the hydrodynamic snapshots shown for a wavelength range of 150 nm to 10 000 nm. The main plots show wavelengths of 300 nm to 10 000 nm using logarithmic x axes, while the insets show 150 nm to 300 nm using linear axes. These are shown at μ = 1.0 (top) and μ = 0.5 (bottom). Note the different vertical scales.