Feature request: transparent border with customizable width around each exported sprite

[2blackbar]

It would be very useful for my own workflow so not sure what others would say , a lot of times i dont need every sprite to be touching its borders and need transparent area all around without any solid pixels at the border.
Because when sprite1 and 2 are stacked one next to another then sometimes the pixels from sprite1 and sprite2 touch themselves at the borders creating one big sprite on spritesheet, that makes it harder to unpack later and identify as 2 separate sprites.