Accent
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A detail, brushstroke, or area of color placed in a painting for emphasis
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Acid Free
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Papers without acid (pH) in the pulp when manufactured. High acidity papers degrade quickly
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Acrylic
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Paint made from pigments and a synthetic plastic binder, water-soluble when wet, insoluble when dry
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Alla Prima
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Italian phrase meaning "first time". Painting directly in one session with no under-drawing or painting. Usually refers to oil or acrylic painting
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Analogous colors
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A grouping of related colors next to each other on the color wheel. Example: Yellow, Yellow Green, and Green
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Aquarelle
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The French term for the process and product of painting in transparent watercolor
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Archival Paper
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Archival watercolor paper is any pure 100% rag , cotton, or linen watercolor paper of neutral or slightly low ph, alkaline (base) vs. acidic, and pure ingredients. Some synthetic papers are archival in nature but have unique working properties
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Atmospheric perspective
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Suggesting perspective in a painting with changes in tone and color between foreground and background. The background is usually blurred and hues are less intense
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Back runs
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When your fresh brush stroke hits a still damp wash it will force the original wash out in a irregular, often fractal manner. This can totally screw up what you are intending to do, unless you do it intentionally
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Background
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The area of a painting farthest from the viewer. In a landscape this would include the sky and horizon. In a still life or portrait it could be a wall or room interior
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Batik
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Using wax resist designs on dyed fabrics. Colors are dyed lightest color to darkest color, with new design elements added before each color bath
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Binder
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That which holds the paint together, such as linseed oil for oil painting, polymers for acrylics, gum arabic for watercolors and gouache
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Blending
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Fusing two color planes together so no discernable sharp divisions are apparent
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