The Happy Shadow Thoughts Tunic is a tunic that Linh made for Sophie when she was recovering in the Healing Center from a shadowflux attack. Linh said she wanted it to be hot pink and have a lot of smiley faces on it. On the front, it said "Happy Shadow Thoughts" and "Angry Echoes-Beware!" on the back, and everything was said to be written in glittery silver. It was based on an inside joke from Flashback, from when Tam tried to calm Sophie’s echoes.
When Keefe saw Sophie wearing it before she reset her abilities for the third time, he asked why she was wearing Tam's logo, and that she should wear a shirt saying, "Empaths Give Me All The Feels".