color_filter_invert top-level property

ColorFilter color_filter_invert
getter/setter pair

Implementation

ColorFilter color_filter_invert = ColorFilter.matrix(
  [
    //R  G   B    A  Const
    -1, 0, 0, 0, 255, //
    0, -1, 0, 0, 255, //
    0, 0, -1, 0, 255, //
    0, 0, 0, 1, 0, //
  ],
);