Computed F₁ score for each input channel in the permutation feature importance assessment. The evaluated channel is shuffled to measure performance loss, where a lower score indicates higher importance. The left panel shows the results for the SST input features (wavelength offsets in Hα) and the right panel displays the results for the SDO/AIA passbands. Both panels show the results for the CNN architecture. A dashed vertical line indicates the score without shuffling the input features.