The same as Figure 12, but using mutual information instead of Spearman rank coefficients. Here we show the case where attenuation curves from different dust mixtures are combined and treated as additional lines of sight, and in Figure A3 we separate the dust mixtures. Yellow regions correspond to nearly independent quantities, while darker/purple shades indicate stronger statistical dependence. Unlike Spearman coefficients, which only capture monotonic trends, mutual information is sensitive to more general nonlinear and nonmonotonic relationships between attenuation-curve parameters and galaxy properties.