Preview image (admin) is WAY too big in domain/themes settings.

The preview image for the theme appears to be full sized instead of a dedicated preview/thumbnail.

Although the standard "Appearance" page appears to resize images to their proper size in the UI, the page on domain/themes (using the Domain Access and Domain Theme modules) does not perform this resize, resulting in an unwieldy UI experience. See attached.

I'm sure the argument can be made for the Domain Theme module to resize the images, but I believe they'll just argue back that it's expected behavior for the preview thumbnails to be appropriately sized already, as most of them are.

I think it would be helpful to provide a properly sized preview image.