 When Lime and Coral joined the fleet in 1984, to help visually identify Green from Lime and Pink from Coral, the Lime and Coral stripes had a delta (Δ) painted across doors 2 and 3 in the middle of each car.Monorail Lime's deltas were painted a dark blue in homage to the original Walt Disney World monorail cast's costume colors (lime and blue).Coral's band included white deltas.