Crazy that I’m also trying to achieve the same thing and came upon this.
I made a shape around a logo and used “trim paths” to make it into a line that’s supposed to follow it around. But I want my shape to better blend with the original one beneath it, rather than being a solid “block”. Was wondering if there was a way to feather it out…I’m sure there’s a way, especially using various expressions and linking, but I don’t have the time nor the knowledge to deal with this at short notice.