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Summary
Photoshop provides several ways to move paint around after you have applied it. The Smudge tool is useful for blending small areas of color. It has the same effect as dragging your finger through wet paint. Sharpen and Blur are two sides of the same coin, so to speak. One increases the contrast between adjacent pixels, whereas the other diminishes it. The Toning tools (Dodge, Burn, and Sponge) are the digital darkroom equivalents of real darkroom tools and procedures. They can darken or lighten an image, or change the color saturation by either adding more color or removing some. These tools are mostly used for retouching pictures that you have scanned or shot digitally, rather than for creating your own art.
