Alpha Floor Effect. When the object is serialized out as xml, its qualified name is a:alphaFloor.
Assembly: DocumentFormat.OpenXml (in DocumentFormat.OpenXml.dll)
[ISO/IEC 29500-1 1st Edition]
alphaFloor (Alpha Floor Effect)
This element represents an alpha floor effect.
Alpha (opacity) values less than 100% are changed to zero. In other words, anything partially transparent becomes fully transparent.
blip (§188.8.131.52); cont (§184.108.40.206); effectDag (§220.127.116.11)
[Note: The W3C XML Schema definition of this element’s content model (CT_AlphaFloorEffect) is located in §A.4.1. end note]
© ISO/IEC29500: 2008.