(define sixhat
  (λ (dave)
    (display 'ideas)))

A simple CSS trick 4 dithered images

p.img {
  background: linear-gradient(0deg, #c91136 0%, #4343b5 35%, #eebf18 100%);
  display: inline-flex;
}
p.img > img {
  mix-blend-mode: hard-light;
}