The sweater says it all (Patreon)

Decadent Arsenic would have us believe that Aelfig knitted a sweater out of RAW wool as it came off of Lana, and also dyed it a different color to make the lettering. This makes me think of "Shirt Tails" that 80s cartoon with the cutesy (Care Bear wannabe) animals whose inner souls were revealed by the slogans on their shirts.