Color diagrams to select EELGs at each redshift range. The color cuts are marked in magenta (top panel) and cyan (bottom panel) shaded regions in each panel according to Eqs. (1) and (2), respectively. The selected EELG candidates are in red circles, while parent samples at similar redshifts are in black circles. The sources with red crosses were discarded due to contaminated photometry as explained in the main text.