Scatter plot of mean post-peak g-r (horizontal) vs. mean post-peak r-i (vertical), with 1D distributions (histograms) shown along the top and right axes. TDEs (blue crosses) appear bluer than SNe (orange circles and green squares) and SLSNe (pink diamonds), while AGNs (gray triangles) span a broader range of colors. Contours denote the 50%, 80%, and 95% highest-density regions of the per-class 2D kernel density estimate.