That seems a lot more complicated than just coding it. How would you go about drawing a box shadow on the sliders? What if you wanted a background image behind it? How would the model know that it's a box-shadow, or that the background is an image?
I feel like for that level of granularity, you'd spend more time figuring out how to style it than just writing it in code, since you'll need to start using descriptors on things, which is literally just coding again.
"just coding it" is a lot harder if you know nothing about code. What's cool here is that someone with literally 0 knowledge of programming can use this. Before this there was simply no way for them to do something like this, it was straight up not possible without the barrier of learning to code first. Does this do it all? Will this replace programmers? No, the skill ceiling remains as high as it ever was, but the skill floor for making something like this has been raised.
I feel like for that level of granularity, you'd spend more time figuring out how to style it than just writing it in code, since you'll need to start using descriptors on things, which is literally just coding again.