Find the ID of the section (Google extensions: Squarespace ID finder) + add the class of the background image (.section-background):
section[data-section-id=“yourDataSectionID”] .section-background {
}
After that, creates svg code. Here you area good tutorial for that:
https://css-tricks.com/using-svg/
And once the .svg chart code is generated, we assign it to the "background-image" property in the stylesheet code keys:
section[data-section-id=“yourDataSectionID”] .section-background {
background-image: url(”data:image/svg+xml;base64,[data]”)
}
I hope this helps you!!! :)