Haha, I'm sorry, but wherever you're getting this is way off.
"Tone" as you call it, is definition. Definition is caused by low body fat. It has absolutely nothing to do with different types of muscle, whatever that is.
So no, lower body fat doesn't "= strength", at all.
Strength is strength.
Size doesn't automatically "= strength" either, it's just very often a byproduct. On top of that, having more weight behind you allows you to exert more force, in a nutshell.
I also laugh at those calling Hurley fat.
I'm glad to find that somebody posted this.