secondOverlayOpacityFromFirstAndAddend function

double secondOverlayOpacityFromFirstAndAddend(
  1. double firstOverlayOpacity,
  2. double addend
)

Implementation

double secondOverlayOpacityFromFirstAndAddend(
  double firstOverlayOpacity, double addend
) => secondOverlayOpacityFromFirstAndResultingOpacityMultiplier(
  firstOverlayOpacity, (firstOverlayOpacity + addend) / firstOverlayOpacity
);