Half-light radii vs. visual band luminosities for various object types. Gray circles show stellar systems observed in the local Universe including giant, compact, and dwarf ellipticals (gE, cE, and dE), dwarf spheroidals (dSph), ultra-compact dwarfs (UCD) as well as globular and extended clusters (GC and EC) compiled by Brodie et al. (2011). Triangles indicate ultra-diffuse galaxies (UDG) observed by various authors: UDGs inside the Coma cluster by van Dokkum et al. (2015) and Zöller et al. (2024) in gray and green, respectively; gas-rich field UDGs by Jones et al. (2023) in light blue; and finally NGC 1052-DF2 and DF4 observed by Cohen et al. (2018) in light red. Top: purple colors indicate stripped tidal dwarf galaxies in all three simulation samples (C0, C25, C45), while the shade encodes the time span that has passed since the beginning of our dwarf tracing. Bottom: the same objects as in the upper panel, but colored according to their radial distance from the cluster center.