20.1.2.3.3 alphaOff

This element specifies a more or less opaque version of its input color. Increases or decreases the input alpha percentage by the specified percentage offset. A 10% alpha offset increases a 50% opacity to 60%. A -10% alpha offset decreases a 50% opacity to 40%. The transformed alpha values are limited to a range of 0 to 100%. A 10% alpha offset increase to a 100% opaque object still results in 100% opacity.

Attributes

val (Value)

Specifies the opacity as expressed by a percentage offset increase or decrease to the input color. Increases never increase the opacity beyond 100%, decreases never decrease the opacity below 0%.

[Example: The following represents a green solid fill which is 90% opaque

<a:solidFill>
  <a:srgbClr val="00FF00">
      <a:alphaOff val="-10%"/>
  </a:srgbClr>
</a:solidFill>

end example]

The possible values for this attribute are defined by the ST_FixedPercentage simple type (20.1.10.24).

[Note: The W3C XML Schema definition of this element’s content model (CT_FixedPercentage) is located in A.4.1. end note]