This mod has been slightly modified from the original version post in my forum thread.
In order to use this mod you need the Loader V5.41 or better.
This mod is an "Overtop". It's designed to allow combinations with normal tops without the need of using the same color for both, sacrificing instead the collar slot.
This mod uses the first Collar RGB Slider (leaving the Top RGB Slider free for another top).
This mod includes a collar part (even if it is invisible), so you need to include it if you are using Moreclothing.
The modtype for Moreclothing (V4 or better) is CostumeOverTop.
Credits: This mod was made using sby alternate loader template (no, you don't need it to make it work).