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object with Darken/Lighten applied:

White - no effect on the colors of underlying objects.

Gray & Black - darkens/lightens the colors of underlying objects.

Other colors - convert the color to the equivalent shade of gray. (Yellow gives light gray, Red
dark gray.) Then darken/lighten the colors of underlying objects.
Brightness
Depending on the color chosen, Brightness makes the colors of underlying objects lighter or darker. The
color of the object with Brightness applied:

Gray (below a 50% tint of black) & White - makes the colors of underlying objects lighter.
White has maximum effect

Gray (above a 50% tint of black) & Black - makes the colors of underlying objects darker.
Black has maximum effect.

Other colors - convert the color to the equivalent shade of gray. (Yellow gives light gray, Red
dark gray.) Then lighten or darken the colors of underlying objects.
Luminosity
Luminosity uses the grayscale equivalent of the color to control the luminosity (or Value) of underlying
objects. Note that Luminosity has no effect on gray, white or black underlying objects. The color of the
object with Luminosity applied:

Gray & White - increase the luminosity of underlying objects. White has the greatest effect,
producing saturated color.

Black - remains as a black object.

Other colors - convert the color to the equivalent shade of gray. (Yellow gives light gray, Red
dark gray.) Then increase the luminosity of underlying objects.
Hue
Hue is useful for color-shifting underlying objects. Its action is most easily understood using the HSV
color model. The color of the object with Hue applied:

Gray, White, & Black - has no effect. These colors lie at the center of the color wheel and so
have no hue.

If the underlying color is gray, white, or black - Hue transparency type has no effect.

Other colors - replace the Hue of the underlying color with the Hue of this object. Use the
Saturation and Value of the underlying color.
For more information on HSV refer to Color handling
.
For all these, the slider controls the amount of transparency from opaque (0% transparent) to fully
(100%) transparent.
Applying a flat transparency to an object also applies transparency to the line around the object. It is not
possible to set different transparencies, but you can remove the line by setting it to no color or by
selecting "None" as the outline width. To create an object with a transparent fill and a non-transparent
line, use a non-flat transparency type.
For more information on colors see Color Handling
.
Enhance
See Enhance
below for more information on Enhance transparency.
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