Radial profile of the Fermi-LAT excess count in the total energy band (200 MeV−300 GeV) for different models. The black data points give the excess count when both 4FGL J1256.9+2736 or a cluster model is excluded from the model. We show the best-fit model in the case of scenario 1 (4FGL J1256.9+2736 only, orange line) and in the case of scenario 2 (cluster diffuse model only; baseline in green and point source in blue). The shaded areas correspond to the expected Poisson uncertainties given the respective model. Bottom panel: residual normalized by the error bar with a similar color code.