Yesterday, someone asked me if it was possible to create an iridescent effect on presets, so the first post has been updated with the code that I've given them to try and achieve this effect. I should have had this updated a few months back, but the preset I was working on just never ended up getting finished, so that's that.
I also have to clean the first post and replace all the images from Photobucket because apparently the site just hates me.