pub fn cross_fade(
first_image: &[u8],
second_image: &[u8],
iterations: u16,
stride: GridStride,
) -> Result<Vec<u8>, TransitionError>pub fn cross_fade(
first_image: &[u8],
second_image: &[u8],
iterations: u16,
stride: GridStride,
) -> Result<Vec<u8>, TransitionError>