We have started adding some Anycubic ones, we'll have more soon. If you are missing some you can also create them custom in your profile and we'll then be able to promote them for the main database crediting you for the contribution!
It also took a bit but we finally have the filaments and credit for the original user!
https://beta.myfilamentlist.com/filament/hatchbox-stone-brown-pla
We are wondering though how come you selected brown for the stone brown PLA if the picture of the filament it's looking more beige. Is it actually brown IRL?
https://beta.myfilamentlist.com/filament/hatchbox-stone-brown-pla
We can correct the color if we got it wrong from the picture let me know