Washing and Shading the Image
Use the Wash medium to apply a transparent wash of the current colour to the image. Use the Shade medium to darken or lighten the image. You can wash or shade specific areas using the brush or the entire image using the Wipe command.
With the Shade medium, you darken images using a colour with a low luminance value, and lighten them using a colour with a high luminance value. The opacity of the brush affects the transparency of the paint applied to the image. When the opacity value is set to 100%, the paint applied is completely opaque. As you decrease the opacity, the paint becomes more transparent.
Selecting a Colour Model
You can apply the colour using either the YUV or HLS.
To select a colour model:
Click Setup.
Select either YUV Shade/Wash or HLS Shade/Wash.
To use Wash or Shade:
Click Custom, and select Wash or Shade from the Custom Media box.
Click Canvas.
Set the current colour.
Set the brush opacity.
Paint on the image.