Constant radiant_rs::blendmodes::REVERSE_SUBTRACT

pub const REVERSE_SUBTRACT: BlendMode = BlendMode{color:
              BlendingFunction::ReverseSubtraction{source:
                                                       LinearBlendingFactor::One,
                                                   destination:
                                                       LinearBlendingFactor::One,},
          alpha:
              BlendingFunction::ReverseSubtraction{source:
                                                       LinearBlendingFactor::One,
                                                   destination:
                                                       LinearBlendingFactor::One,},
          constant_value: Color(0.0, 0.0, 0.0, 0.0),}

Subtracts destination from source.