Are these molds on my watercolor pans? What exactly are these

FanFlex: Lightweight flexible crests and patches that fold easy. - FanTex: An all-new super comfortable soft fabric. - FanFit: The authentic on-ice

DOODLE HOG 48 Premium Watercolor Half Pan Set in Metal Palette, Water Color Paint Sets for Kids, Watercolor Sets for Adults Beginners, Professional

Making An Underglaze Watercolor Pan Set

DIY Music Crayons - Make Moments Matter

FanFlex: Lightweight flexible crests and patches that fold easy. - FanTex: An all-new super comfortable soft fabric. - FanFit: The authentic on-ice

Honeysticks Non-Toxic Watercolor Paint Set for Kids and Toddlers - 8 Vibrant and Long Lasting Colors with Brush - Natural and Food Grade Ingredients

An Art Journal Helps You Generate Ideas, Test New Creative Waters and Reflect

Watercolor Characteristics: Getting Acquainted With The Colors In Your – Greenleaf & Blueberry

Can You Paint Clay With Watercolor Paint? - Crafty Art Ideas

Mold Attack! Artist's Nightmare, My Eternal Enemy

Are these molds on my watercolor pans? What exactly are these? Thank you! : r/Watercolor