Figure 15.109.  The “Transparency” submenu of the “Layer” menu
The Transparency submenu contains commands which use or affect the alpha channel of the active layer.
You can access this submenu from the image menubar through Layer → Transparency.
The Transparency submenu contains the following commands:
Section 10.40, “ Add Alpha Channel ”
Section 10.43, “ Threshold Alpha ”
Section 10.41, “ Color to Alpha ”
Section 10.42, “ Semi-flatten ”
Section 10.44, “ Alpha to Selection ”
Section 10.45, “ Add to Selection ”
Section 10.46, “ Subtract from Selection ”
Section 10.47, “ Intersect with Selection ”
 
 
