Time-averaged GRRT images of MAD simulations with various black hole spins and eDFs at 230 GHz with an inclination angle of 163°. From top to bottom: black hole spins with a = −0.9375, 0, and 0.9375, respectively. From left to right: the variable κ eDF using the R − β model with R_h = 1, turbulent and reconnection heating, and a fixed κ eDF, with κ = 3.5 using the R − β model with R_h = 1, turbulent and reconnection heating prescriptions. The dashed white contour indicates the curve with 1% of the maximum flux. The time-averaged total flux is 0.5 Jy at 230 GHz, with a simulation time span from t = 14 000 to 15 000 M.