.ps__thumb-y {
  background-color: lighten($primary, 5%);
  background-image: linear-gradient(45deg,
          rgba(255,255,255,.15) 25%,
          transparent 25%,
          rgba(255,255,255,.15) 25%,
          transparent 25%,
          rgba(255,255,255,.15) 25%,
          transparent 25%,
          rgba(255,255,255,.15) 25%,
          transparent 25%,
          rgba(255,255,255,.15) 25%,
          transparent 25%,
          transparent
  );
}