Why does JIG use TimThumb?
...No alternative for this kind of use After looking at plenty of other solutions, it seems that there is no proper alternative besides Jetpack Photon. Thumbnail creation for JIG needs to fulfill this needs: Works with external images from various sources, such as Facebook, Flickr, RSS feeds (YouTube, Vimeo, 500px, DeviantArt and so on). The retina ready feature needs thumbnails...