Divi Logo Swap is a simple, easy to use plugin for swapping the logo of your website when the page starts to scroll.
This can be used for showing a simplified secondary logo, or for showing a different logo all together. When the page starts to scroll, the first logo fades out, and the secondary logo slides in from the bottom.
This plugin works great out of the box, if you use the recommended image dimensions, but may require some CSS tweaking to position the logo if you’re using alternate Divi header options (centered logo, etc.).