Creating a border pixel from a 3×3/4×4 pixel PNG where the center pixel/pixels is transparent gives a very strange result when put in a resizable "large" rectangle.

Creating a border pixel from a 3×3/4×4 pixel PNG where the center pixel/pixels is transparent gives a very strange result when put in a resizable "large" rectangle.

The border only fills up the top part of the rectangle and there are severe performance decrease when resizing.
Changing the border size to 2 instead of 1 fixes the problem though, however the border still looks a bit strange during resizing.