my developer is in the middle of upgrading my site from M1 to M2 2.3.2. Some of the product images that should have a white back ground now have a black background. My developer says it's because M2 does not support .gif images. Does anyone have an answer how to get around this without having to manually change each image? [![enter image description here][1]][1]


  [1]: https://i.sstatic.net/JKfaP.jpg