I love this extension.
Its hugely useful for softlinks or highlighting directories where I'm currently doing dev work. (red = active, orange/sand = recent, green = git). I do it as many of the directories are replicated off a NAS, which is itself soft-linked into various trees.
I'd absolutely love the OPTION to colour ALL SUBSEQUENT folders with the desired choice.
i.e. If I colour /foo red, all subsequent directories under /foo are also red. /foo/bar .... /foo/baz ... both red.
(If not, perhaps there is a way this might be selectively scripted?)