I've seen variation of this question on Stackoverflow that do not answer the question.
The problem is that the background image is placed using % or center, left, top, etc. But what we actually want to know is what that positioning is calculated at in pixels. I'm not asking what it is set at in the CSS, inline style or otherwise, but what the browser has calculated the position should be based upon those style settings.
I've already looked at: https://developer.mozilla.org/en-US/docs/Web/API/Window/getComputedStyle
I would like something like this: https://developer.mozilla.org/en-US/docs/Web/API/Element/getBoundingClientRect ... But for background image/s.
Those functions are as far as I've got so far looking for a solution. We have also tried getting Node properties, but we're still experimenting with that.