by clicking here.
Sally is using Interference Acrylic colors that offer a unique "interference
When viewed from different perspectives, Interference colors
flip between a bright opalescent color and its complement. When applied
over white or lighter surfaces, the Interference color is less obvious
and the "flip" effect is more obvious. When applied over black
or darker surfaces, the Interference color is more obvious and the "flip"
effect is less obvious.
It is very interesting!
- Jan Francoeur