Color-color diagram for one of the early-type cluster galaxies in our sample. The red dot represents the color values at 0.1r_e, the yellow dot shows the color values at 0.5r_e, the green dot plots the color values at 1r_e, and finally, the blue dot shows color values at 2r_e. r₆₂₅ − Y₁₀₅ is more sensitive to age variations, but Y₁₀₅ − H₁₆₀ traces the metallicity. For this galaxy the innermost region between 0.1r_e and 0.5r_e is clearly age dominated, while at larger radii, a trend with metallicity takes over.