I want to suggest adding that some of the first colors aren't lined up with the actual costume order, so people wouldn't assume it is while following the tutorial.
Reviving this thread solely for the reason that everything I'm working on currently is going into SSBB Decade. I might show stuff here that I'm working on, so stay tuned!
EDIT: A huge update! The majority of planned features for the first release are ready. The first closed beta is going to be released this week for bugtesting. At first, only the people who are already beta testers will receive it. This closed beta is very different in content from the final public release, so there won't be a lot to show to the public just yet. This release is focused on features instead.
On another note, COVID-19 on top of personal life issues have held the project back, as can be clearly seen from the planned release date. However, a public release of December is very, very likely. Please stay tuned!
EDIT2: Working on this a lot lately, despite some issues. The codeset is pretty much finished, but the content itself is going to need some more polishing. I've also made the Decade icon also be an invite to the Discord group so more people can join. The updates are pretty often there.