Stained glass is coloured while it is still hot and liquid: cobalt turns it blue, copper turns it green. The black lines between the pieces are lead strips that hold the whole pattern together.
The whole pattern is tiny coloured glass pieces, and one big eye in the middle is watching you!
Explore the palette: tap a color to see its swatch and associations in the color encyclopedia.
About speed coloring, records and prizes →
Already colored by 24 artists
