Custom Collars - making the inner edge alpha transparent

[Kayleigh McMillan]

Lately I did some more experiments with how big the section should be in the center to decide the border color or transparancy.
It turns out this can be a way smaller spot see example above.
In case you like to free that spot from pixels to make a perfect transparant border it is important there are no shadows there either so it needs to be completely clean.
It is an iny tiny spot perhaps not even visable here on the forum you can eventually click it to see a larger version on Flickr or click this link »