Background of each individual page to be a different colour. incl. the header and footer.

Site URL: https://the-social-foundry.squarespace.com/

I would like to be able to change each individual page to be a different colour, including the header and footer - without it affecting the other pages. 

I would also like to be able to change the logos for each individual page to suit the new colour. 

Thanks. 

https://the-social-foundry.squarespace.com/

password: social

Edit Page > Add a Code Block at bottom of page > Paste this code

<style>
  header#header, .section-background {
    background-color: red !important;
}
  header#header img {
  	content: url(https://cdn.pixabay.com/photo/2022/08/09/16/19/sea-7375377__480.jpg);
  }
</style>