The intersected with the existing selection: only common parts of both selections are kept. The alpha channel itself is not changed.
command creates a selection in the current layer from the Alpha Channel. Opaque pixels are fully selected, transparent pixels are unselected, and translucent pixels are partially selected. This selection isYou can access this command from the main menu through
→ → ,oppure tramite menu che viene portato in primo piano facendo clic con il tasto destro del mouse sul livello attivo nella finestra di dialogo dei livelli.