Element: entity.alpha
Element: entity.alphanumeric
The alpha transparency of the graphic primitive. Alpha transparency enables a graphic primitive to be rendered so that underlying graphics are visible. An alpha value is in the range 0 through 1, 1 for fully opaque and 0 for fully transparent (basically making the graphic primitive invisible).
The value of this element can be redefined.
The alpha transparency of new primitives is 1 by default, unless defined otherwise via the -alph switch on the entity creation command.
Consider the following example which displays a text entity with alpha value 0.4 and another text entity with the default alpha value of 1.
See how the underlying yellow polygon is visible through the transparent text.
