Just an idea, I entered in launchpad as an answer, but Launchpad Janitor change status to expired.
This is my suggest:
More than a question, is an idea, or wish.
Where great if creating a border for the imagen, on this let you define a different size for each side of the image, as in ccs or other. I meant x pixels for top border, y for right one, n for left one…
As I told before, is just an idea.