VPM diagrams. Left panel: VPM diagram for Garro 03 cluster as a 2D histogram, displaying both the PMRA (in blue) and PMDEC (in red) histograms separately. The yellow and light green colours depict overdensities, whereas the dark green and blue colours represent lower densities. We indicate with dotted white circles the 1σ, 2σ, and 3σ centred on the mean cluster PMs. Middle and right panels: VPM diagrams for the Gaia+VVVX and Gaia+2MASS samples, respectively. The differences in colours reproduce the PM membership probability, as depicted in the colour-bar.