exr manipulation

[jpaul]

i don't even know what chatgtp is. i know it has to do with AI but that's all. here's the link to the product. as you can see on the descriptive images there are several colors shown. but when you download the thing there's only green. i want to create several variations yellow, blue.. but idk what the author means by adding a mask to the composite layers

https://www.turbosquid.com/3d-models/3d-...al-1908980