overdragMax property
Caps the per-frame image shift applied when the crop rect is being
dragged into the edge of the image (see
ScaleExt.imageRectOnDragCropRect). Higher values let the image catch
up to the finger more aggressively when the crop is pinned against an
edge; lower values keep the image steadier. Default 3.0, matching
imagineai's original tuning.
Implementation
final double overdragMax;