BP/RP correlation ρ_BP, RP and color-magnitude ρ_{G, G − RP} correlations as functions of the series length, G magnitude, and the redshift. Each dot represents one source. Dots are purple if the p-value associated with ρ is lower than 0.05. The thick, solid line connects the median values of ρ computed for bins of equal number of sources sorted by the corresponding abscissa values. The shaded area represents the 95% confidence interval of the overall sample distribution. The three numbers above the plots refer, from left to right, to the number of sources, the Spearman coefficient of the unbinned data and its p-value.