In 1997, Crayola released Crayons with Glitter as part of a Special Effects crayons package. The sixteen crayons all consisted of regular Crayola colors. The thirty crayons all consisted of regular Crayola colors. The 16 crayons all consisted of regular Crayola colors. The color yellow in Crayola crayons is displayed at right. Blue (Crayola) is the color called "blue" in Crayola crayons. In 2004, Crayola released a 24 pack of Fun Effects mini twistable crayons. Crayola markers were introduced in 1978 to coincide with the 75th anniversary of Crayola crayons. In 2001, Crayola produced the Gel FX crayons. In 1976, Crayola released a pack of 8 Fabric crayons. In 2004, Crayola released a set of 24 mini twistable crayons. The Crayola Changeables crayons were introduced in 1995. Green was one of the original Crayola crayons introduced in 1903. Pale silver is the pale tone of silver color called "silver" in Crayola crayons. Mahogany red is equivalent to the color called "mahogany" in Crayola crayons.