Example illustrating the definition of the outskirts and inner regions. Left panel: stacked image combining all JWST bands, defined as STACK = F115W + F150W + F200W + F277W + F356W + F410M + F444W, using PSF-matched data. The dotted line shows the segmentation map, while the solid line traces the ellipse with a semi-major axis of 0.16″ = 2HWHM. Right panel: color composite image using F150W (blue), F277W (green), and F444W (red). The white circle indicates the PSF FWHM beam at F444W. As expected, the galaxy exhibits a centrally concentrated red emission and a bluer, more extended periphery.