Surface density of the gas (purple), small dust (red), and large dust (green) in the fiducial model for the HD 100546 disk. The light purple, red, and green lines indicate the respective surface densities in a full disk without any gaps, cavities, and rings. The blue shaded regions indicate the dusty inner disk and the two dust rings at 20–40 au and 175–250 au respectively. The surface density ∑_c/e at r_c is indicated with a scatter point in the left panel. Additionally, the DALI parameters that control drops and increases in the surface densities are indicated with arrows (see Table B.1 for their values). The red bar in the inset in the left panel indicates the gas surface density based on CO by Fedele et al. (2016). The small insets in each panel focus on the inner 25 au of the disk.