Batch replace colors

[EagleEye559]

Thanks for the advice, I've done some quick testing with that method, and I seem to have made an error, as all the files now have a green tint applied. I'll change the approach slightly, but this appears to be a method to pursue for now.

Regardless of the color being converted to Alpha, the rest of the image has it's color shifted.
https://gyazo.com/281090f29317dc15090582304b4bd3d1