The way resizing and cropping works in add_image_size is it resizes the image first, and then crops the image. Is there some way to crop to a desired size first, and then resize?
For example, say I have full images of logos that are all 1000x1000 px but the logos themselves only takes up the middle 600x600 of the images. I'd like my thumbnails of those images to show just the logos, so they should first be cropped to 600x600 first and then resized to the thumbnail size (eg., 100x100).
How would I go about doing something like that? Thanks for any help!