Changes in this release:- Add a 'Resize cover dimensions to match background image' suboption for if you have stretch image to use as cover background enabled.
This was requested above. Note that I have moved the Stretch checkbox option onto the Dimensions tab along with this new option, since all three work together.
So now you don't have to muck around with proportions or copying dimensions if you are using a background image/swapping between them with this checked.