I'm posting this as an idea because I cannot find how to remove the gap between immersive blocks in a storymap, but maybe there's something I missed and it's actually possible.
Let me explain.
Let's say my storymap's background color is light green and I add a number of sidecar blocks with a different background color or with a background image with another color range. In my layout I always see a light green (the background color) stripe between each sidecar block which ruins the whole look and flow of the story. It would be great if blocks could 'touch' each other and you could simply add as many space as you want between them if that's what you need.
