Semi-moist Underglaze Decorating Colors - Pans Hand Painted Ceramic Pieces. AMACO® Semi-Moist Underglaze Decorating Colors are suitable for many types of ceramic painting. They are especially good for water color effects and painting of fine detail. Decorating colors are concentrated, intense and opaque. Additional shades and tints can be made by intermixing. Colors may be brushed on either bisque or greenware. A brush dipped in water lifts the color for decorating. Further thinning of the water soluble colors prepares them for transparent water color effects by brushing. Semi-Moist Underglaze Decorating Colors Pan Set contains 8 assorted color pans in a hinged plastic box. Set 108 colors include: Maroon, Light Yellow, Dark Blue, Blue Green, Dark Green, Black, Light Brown, White.