Properties of simulated planets from one simulation with the fiducial model parameters. Left: protoplanet masses at the time of their migration across the inner domain radius of the N-body code r_domain (grey) and their final masses (black), plotted against the time at which they migrated across r_domain. Right: water mass fractions of protoplanets at the time of their migration across the inner domain radius of the N-body code r_domain (grey) and their final water fractions (black), plotted against the time they crossed r_domain. In the right panel, the dot size is proportional to the final planet mass.