fixed background-images?

Choose background-attachment : scroll for your color-section
give to that color-section a custom css class:
bg-fixed

then creating a pseudo-container :before ( or :after ) with position fixed. And inherit the most of the attributes of the color-section

Important : cut the bg-fixed container to its initial dimensions with clip-path : inset(0 0 0 0)

PS: inset is bad supported on position:fixed – so here is a clip-path polygon used

but even this is sometimes not working – thanks to iOS

.bg-fixed {
  background-size: 0px !important;
  overflow: hidden;
  position: relative;
  -webkit-clip-path: polygon(0 0, 100% 0, 100% 100%, 0% 100%);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0% 100%);
}


.bg-fixed:before {
  background-image: inherit !important;
  background-repeat: inherit !important;
  background-size: cover;
  background-position: inherit;
  content: "";
  position: fixed;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  z-index: -1 !important;
  pointer-events: none;
/*** if more than one is handled - very performance intensive 
  will-change: transform;  ***/
}

Charlie and Blue were born in 2011 in Ireland! The boys crossed the Irish Sea and found their forever home at The Island Project in the summer of 2012.

However, when the boys arrived, Blue was suffering with nerve damage to his spine and we were told that he would either be able to walk, or he wouldn’t… Blue thankfully has little issues with his back (apart from when it’s time for the farrier to come and trim he nails – he feels uncomfortable standing on three legs). We manage Blue’s back by never riding him (or Charlie for that matter), letting them have lots of space to run and roll in and we provide him with a waterproof donkey rug in the winter to keep his spine insulated.

Charlie and Blue were born in 2011 in Ireland! The boys crossed the Irish Sea and found their forever home at The Island Project in the summer of 2012.

However, when the boys arrived, Blue was suffering with nerve damage to his spine and we were told that he would either be able to walk, or he wouldn’t… Blue thankfully has little issues with his back (apart from when it’s time for the farrier to come and trim he nails – he feels uncomfortable standing on three legs). We manage Blue’s back by never riding him (or Charlie for that matter), letting them have lots of space to run and roll in and we provide him with a waterproof donkey rug in the winter to keep his spine insulated.