This question seems to keep coming up, or other related questions do.
“How can I change the color(s) of an item?”
“How can I decompile an item without breaking it”
“Can I change colors without decompiling”
There’s no need to decompile an SWF just to change some of the colors, especially not items. A lot of this can be done using JPEXs “export/import XML” feature which doesn’t require full decompilation, therefore resulting in a perfect edit.
I have made a program that does this for you, no need to do any research, programming or editing of XMLs.
Just download the program and run it, I even turned it into an EXE for windows users.
Find my original post about this here.