Pressure changes in fluidity

This feature measures sudden changes in pressure. Poor pressure control is shown as jerkiness (sudden pressure changes) in writing.

The colour describes the rate of change in pressure. Red means that the pressure is increasing rapidly, blue means that the pressure is decreasing and white means that the pressure remains constant. The example on the left shows smooth writing (there are few peaks), in contrast to the example on the right where the pressure changes are jerky.