
GPT Transparent BG Image
Most editors see the empty area as white
A file format that carries transparency stores it as a number per pixel, from fully opaque to fully invisible. An editing pass that does not read that number treats the same pixels as either white or black, depending on the software, and every operation it performs assumes a solid sheet underneath. Exporting afterwards gives a picture with a white rectangle where the cutout used to be. It is not a dramatic failure, which is why it goes unnoticed until the asset is dropped into a dark layout. Everything a GPT transparent BG image pass does is arranged around avoiding that outcome.





