Obtaining Virric (The New way)?

[li]So I noticed the latest update provided us with a new way to obtain the colour Virric, which was so far the hardest colour of the Neathbow to obtain for me. I was just wondering if anyone has obtained the colour in the new way with the mirrorsnatch boxes yet? If so, how? (I know it has something to do with obtaining a Mirror-charm from Varchas and dreams tainting the light to make it Virric, but I cannot figure out how to make it work. Is it all done at Varchas? Or do we have to go and bring a filled mirrorsnatch box from Aestival, and then go to somewhere like Irem with the mirror charm, or what?)

It’s all Varchas.