Mass-radius diagram (on the left) showing the simulated planetary sample (black circles, often partially overlapping), assuming the formation time of 0.2 Myr, together with the observed K-dwarf population (blue circles with gray error bars), and the terrestrial Solar System planets for comparison (red circles). Some of the simulated Ca- and Al-rich(er) planets are also displayed (light-green circles). The compositional curves are from Zeng et al. (2016). The plot on the right is just a zoomed-in version of the gray dashed region in the left diagram.