work with brushes
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brush tool
hard big brush
small soft brush
medium opacity brush
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open the Brush settings from the left-hand upper toolbar.
tinker with the Size and Hardness values between strokes to familiarize yourself with the Brush tool.
modify the Opacity in the upper toolbar.
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select a new swatch and color the image.
select Revert from the File menu.
select the portion of the image you wish to modify. use the ] key to enlarge the brush. then, paint in the selection.
deselect all.
paint color
revert
select
color and deselect
use foreground and background color
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click a color to select it. the color you select will become your foreground color.
selecting another color will replace the foreground color, which will become the background color.
click the arrow icon next to the color palette or press the X key to switch between the colors.
choose a color
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color pickers
select color
draw
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use the slider to select the hue. use the large box to select the saturation and value.
click OK, then use the Brush tool to draw with your color of choice.
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the Color panel is very similar to the Color Picker tool.
the Swatches panel is comprised of groups of colors, some with technical significance.
if these panels aren’t present, they can be toggled in the Windows menu.
select color from color panel and draw
select colors from swatches and draw
exercise from 2017 Adobe Creative Cloud Photoshop Tutorial Article Use Color. https://www.adobe.com/learn/photoshop/web/color-management-basics