Photometry, proper motions, and astrometry of the stellar populations in the field of view of NGC 346. The three left panels are reproductions of the m_F814W vs. m_F555W − m_F814W CMDs for stars in the field of view of NGC 346 and are used to select various groups of stars that we represented with colored symbols. The middle panels show the proper motions for stars in the magnitude interval delimited by the horizontal lines in the corresponding CMDs, whereas the right panels show the coordinates of the selected stars. The top panels are focused on candidate pre-MS stars. Specifically, bright pre-MS within 28 arcsec from the center of NGC 346 (pre-MS I sample) are represented with orange symbols, the remaining bright pre-MS stars (pre-MS II sample) are colored yellow, while the black symbols in the top panels mark faint pre-MS stars. Bright MS stars are investigated in the middle panels. Blue and aqua colors mark MS I and MS II stars, which have radial distances larger than 28 arcsec from the center of NGC 346, but different proper-motion distributions. The remaining bright-MS stars are colored black. The bottom panels highlight the selected RGB stars with radial distances from the center of BS 90 larger (red) and smaller than 60 arcsec (black).