This view shows the individual forces for each of the car's axis exerted on the individual wheel.
The colour logic is that the scale from blue to green represents the utilization of the tyre's grip in that direction (blue = 'zero' force applied in that direction; green = you are on the limit of what the wheel can handle), while it turns red the moment you overpush the tyre (for example slip or lockup under braking).
The yellow lines represent the weight pushing down on the respective wheel as you drive.