Sign & Digital Graphics

January '17

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S I G N & D I G I T A L G R A P H I C S • January 2017 • 39 the trees can be changed to bubble-gum pink (see Figure 2). Here's how the panel works. By default, the values you see in the Hue/ Saturation dialog box are a color's position on the color wheel expressed in degrees from -180 degrees to 180 degrees, with 0 being the midpoint or the color as it exists before the alteration. Values in the box reflect the amount of rotation from the original color. Dragging the sliders to the right, or a positive value, indicates a clockwise rotation of the color wheel. Moving it to the left, to a negative value, indicates a counterclockwise rotation. The color bars at the bottom of the dialog box are an indicator of how the colors change as you move the Hue slider. By default, the color bars are aligned as in Figure 1. As you move the Hue slider, the top color bar remains in place and rep- resents the entire range of colors prior to the change. The bottom color bar is dynamic and moves as you drag the Hue slider and realigns with the colors on the top bar to reflect the relative change of colors as in Figure 3. Targeting Color Ranges The list at the top of the dialog box affects specific ranges of colors. The Master option permits the entire spec- trum of color to be affected. Each color in the list targets a specific range of col- Figure 2: Dragging the Hue slider changes relative color relationships that can produce some really beau- tiful and unexpected color combinations. Figure 3: The bottom color bar is dynamic and moves as you drag the Hue slider to realign with the colors on the top bar to reflect the relative change of colors.

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