That all works like 💩. Been here, tried it all. Even purchased few paid themes and icon packs (that turned to be disgusting low resolution do*****). And Samsung doesn’t even care to somehow clean up that mess.J
If you don't like Samsung's default, unlike Apple, there are 100's of optional launchers and icons available.
What I love in Apple is that everything works good out of the box. I would love proper theming capability + icon replacement tho, so everyone would be happy, with 3 preinstalled styles: default, minimal and oldschool (that nice iOS 6 aesthetic)