Inserting Non-random layer, based on rarity (Combining Rarity & Replace Utils?)

[brf3000]

Hey there! Firstly I want to thank you for creating an amazing program. I've been able to make dope art with very minimal coding experience.

For my project, I want to create a layer that is not randomized. It's essentially a score that is computed for each image, that would then pull from a folder of images and overlay based on the score each image received.

The score could be defined in two ways.
1- using the rarity util, based on a percentile ranking, each image could be assigned a score
2- using pre-defined points attached to each trait which would be summed up, and then scores defined based on rank

The scores would be grades like A, B, C, D, etc.

Is there a way to implement this sort of idea in the existing program without needing to write much new code? I've searched the forums and documentation but haven't found a solution.

This is the last thing I need to add for my artwork to be completed. If anyone knows how to help with this, it would be much appreciated!!

Thanks again :)