The option got switched to a per pixel filter.
Functionally, 0 (off) and 1 (on) operate the ways they always have but now you can be quite a bit more selective with the filter.
The option itself always seemed like a hack. Now, it's less of a hack.
Thanks IMC guru.
Basically I am a mapping newbie.
So this is how i understand it and hopefully this is correct
Value = 0. This puts the big black border around the tiles that were not downloaded but within a relative area
Value = 1. This removes the black box or shows a extremely thin box
The greater the value above 1 the thicker the black box becomes?
Sorry for the silly questions, as I have always relies upon 3rd parties for maps but now where I fish there are none.