CHANGING THE HOME PAGE BACKGROUND IMAGE IN CARBON
To edit the home page background image first make sure you’re on the home page template in the ProPhoto customizer.
After selecting the settings icon, you should be on the “block appearance” tab. Scroll down and you’ll see the image we have uploaded.
Background Image Sizing
We sized all the header images in the Carbon theme to be 2000 x 800px @72dpi. We generally save as 5 quality JPEG in photoshop or about 50% or less in Lightroom. To maximize the quality but keep a small file size we also use JPEGMINI, which is free image optimizer on the web.