dragMultiplier property
A multiplier applied at every user gesture for sliding the panel.
Controls the amount how much more the panel slides. When user drags the panel, this value is multiplied with number of added pixels to resize the panel.
Given value is clamped between 1.0 and 5.0. For a good experience, keep this between 1.25 to 2.0.
Default : 1.0
Implementation
final double dragMultiplier;