Color distributions of diffuse sources (black line) compared to that for expected background contamination (filled gray area) for the 12 galaxies in Table 1. Galaxies are ordered by decreasing B luminosity. All histograms use 0.1 mag bins. Notice that the colors of the diffuse sources are redder than that the typical background contaminant. While the distribution of diffuse sources blueward of ﹩( g-z) _{0}\sim 1.0﹩ is generally well matched by the control fields, these galaxies clearly harbor an excess of red sources.