I know very well what is done in your screen recording.
The point is to have an object that comes by default with a purple color that need to be changed EVERY TIME, instead of NOT having a color that replaces the Hx css.
And using the reusable blocks is, at best, a workaround for this bad design, sorry for that.
I like a lot Essential Blocks, but this king of behaviour is clearly a flaw…
too bad.