There's a new version available. Release 1.20 adds the ability to use full bitmaps as backgrounds, in addition to the classic tiled ones. This kind of background layer is required to develop games such as Worms, that use full bitmaps and alter them in realtime at the pixel level. Read rhe full post in the facebook news page:
https://www.facebook.com/notes/tilengine...292211244/
https://www.facebook.com/notes/tilengine...292211244/