Same as Fig. 1 but for the smaller aspect ratio. A smaller aspect ratio induces deeper planet-induced gaps in the gas disks, creating stronger features in the dust compared to Fig. 1. In the Compact configuration, at α = 10⁻³, a small amount of small dust flows through the gaps of the giants. This produces a low dust-to-gas ratio in the inner region of the disk, resulting in grain sizes limited by growth and drift rather than fragmentation (see Eq. (7)).