Render attribute modifiers different from style modifiers

[bitspittle]

Not 100% sure the best approach here, but it might be nice if instead of code like this:

Modifier.id("hi").color(Colors.Red).tabIndex(0)

it looked like this:

Modifier.id("hi").color(Colors.Red).tabIndex(0)

(We should probably only apply the visual style to attribute modifiers since they are rarer)

This could make it easy for new users to visually and quickly build a mental model that some modifiers are different than others.

It might be nice if we could also surface "This is a style modifier" and "This is an attribute modifier" into the quick docs somehow, maybe with a link to more information about that.