TFJS selfie_segmentation face swap demo

The demo selfie_segmention shows some kind of inpainting of the mona lisa over your own face segmentation. I tried to play with this, but i cannot find any hints on how this is achieved. I tried browsing through the source code, but it seems very generic and could not find anything specific for this particular effect (as if the mono lisa effect is encoded in the model itself?). There isnt even any mona lisa related asset downloaded when loading the page, and no references to related assets in the source code. Can anyone hint me how i could try this with different face projections?