Newer Mario Barcodes have new color prefix/header

[mutesplash]

https://ramblingbrick.files.wordpress.com/2021/12/img_2469-4.jpg

Instead of always starting with Blue Red, Green Red has been added. This opens up a new space for more codes, but will restrict codes such as Green Red, Blue, X, Y as they could be scanned as Blue, Red, Green, Y, X

[bricklife]

Thanks! I just got my LEGO Peach set and started analyzing the new barcode pattern starting with blue and read.

[mutesplash]

I have some code and tables in my own github repo that were inspired by yours. Using your "hidden color" value theory I got to where I was able to predict the sequences in Python. I don't have Peach yet, but I hope to do some revisions and enhancements when I get that set!