RGB (F115W, F200W, F444W) image of the galaxy ID15371 (3.6″ × 3.6″) at z_spec = 1.921 before (left panel) and after (right panel) PSF matching. In the left panel, the white ellipses show the features we identified and counted as clumps. In the right panel, the colored dotted lines correspond to the division of the galaxy in homogeneously colored regions that we studied separately and the white filled circle shows the PSF size.