Response functions of Stokes I to changes of the temperature, LOS velocity, and magnetic field strength for all spectral lines of Table 1. Pixel 1 (top row) corresponds to a position of the simulation cube with a more inclined magnetic field of B = 535 G and γ = 132° at log τ = 0. Pixel 2 (bottom row) represents a more vertical and strong magnetic field of B = 2800 G and γ = 164° at log τ = 0.