Ok, I made a web build of the project, but it comes with its own dark price. Unity will let you load arbitrary images from the web; however to prevent Unity from being used for cross-domain attacks, it can't manipulate the loaded web-data. So you can load baby pictures into the app, but you can't save them out of the app. The only way to get your finished wight-baby pic is for the user to take a screenshot on their own. Terrible.