Default Sprite Tight Mesh Generation Value?

I am not sure if it is the same thing, but when you import a sprite, you can set it to be tight and then generate mesh for the sprite.

Which is great, but there seems to be no way to be able to control how tight and detailed the generated sprite mesh is. When you open it in sprite editor you can individually generate custom sprite mesh by using outline tolerance. But this option is not available by default for the sprite import inspector.

I am guess, but I feel like they are not the same thing. So, then how can we control the detail of default tight mesh generation?