Two or more colours/looks mixed together in a desired % and placed randomly on a sheet.
GRADATION
A series of colours placed in a gradual transition form giving an effect of light to dark (LD) / dark to light (DL) / light-dark-light (LDL) / dark-light-dark (DLD).
DECORATION
A design made by repeating the modules in all four directions.
BORDER
A design made by repeating a small module in "horizontal" as well as "vertical" direction.
MURAL
A piece of artwork to create a desired picturesque effect.