Visualisation of the force network over three shear deformations. The width and colour of contact forces are proportional to the log of the contact force, see figure 4d in the main text. The top row has non-cohesive (C = 0) simulations, whereas the bottom row has the most cohesive (C = 10). The inertial number progresses left to right I = {.005, .05, .3}.