contour

The outline of a figure or body; the edge or line that defines or bounds a shape or object.

An artwork about shapes, the black or any other color around the shape is the contour.

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Abstract

Of or pertaining to the formal aspect of art, emphasizing lines, colors, generalized or geometrical forms, etc...

Sam drew a circle using his red crayon, and drew an overlapping square on the circle using his yellow crayon. ABSTRACT!

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