the ability to create custom and auto-custom filters.

The pre-made filters are for common situations such as tungstun balance, etc.

I don't use Windows so RawShooter is probably out. I have gimp, ImageMagick, and I can write custom filters at various levels of abstraction if necessary.

Temperature! That is exactly what is wrong with my pictures. They are shifted too cold and they have far too much green which is actually fairly rare in natural light. They have far too much responce in the 350-400 nm range. It tends to really make the colors seem dull. I have been trying to fix the colors in software to little avail.

Thanks, putting a word to it. That really goes a long way in helping me in try to fix this.