I don't think people really understand what muscle tone is.
Muscle tone is not a thing, there is no type of training that is best for muscle tone.
What you need to understand is that muscle tone comes from 1 of 2 things...
MUSCLE, YOU NEED IT!
So you need to lift weights to stimulate muscle tissue.
No I don't mean body pump,
I don't mean jogging every day.
Your diet needs to be on point to maintain muscle
In the scheme of things, way harder than losing body fat.
This brings me to point number 2
In most cases the reason your muscle is not visible is because it's covered in to much fat.
To reduce fat you don't need...
You just need to 'diet',
the fact is you already have a diet.
You need to concentrate on your current eating habits rather than trying to look for the next 'health magazine bullshit' article.
If you don't already track calories, start. I recommend using http://www.myfitnesspal.com