[Paintbruth and Clone Tools: Soft edges]

the clone tool, like other tools, is controlled by the alpha transparency on the colors dialog 8)

1) choose the clone tool.

(menu->clone->tools->clone stamp).

2) select brush width.

(toolbar -> brush width).

3) select alpha transparency

(menu->window->colors->[more]->transparency alpha)

a value of 255 has a crisp edge.

a value 70 has a nice feathering.

a value of 0 is completely invisible :?

NOTE: I am using the 2.6 alpha 2.