Fig. 6. The classification of the stable patterns in the model as a function of input amplitude and width, g₀ and x₀, respectively. Only the patterns with zero peaks are found in the purple area; single-peaked patterns exist in the blue area, while two-peaked patterns do not; both patterns with one and two peaks co-exist in the green area; two-peaked patterns exist in the red area, while one-peaked patterns do not; and neither one- nor two-peaked patterns exist in the orange area. The eggshell phenotypes corresponding to each of these areas are also shown.