The Soft mode is good for selecting objects without clearly defined edges (hair, fluff, fur...).
Blue zones are the parts of the image that must be kept. The points in this area have Transparency = 0%.
Red zones are the parts of the image that will be deleted. The points in this area have Transparency = 100%.
Green zones are a "transition border" between the kept and cutout areas. The points in these zones have different Transparency values (between 0 and 100%).
To edit the blue zones, use and , for red zones - and , for green zones - and .
Adjust the stroke width by changing the value of the Brush Size parameter on the Settings panel.
Use the Green Zone Width parameter on the Settings panel to change the size of the green zones. The higher the value of the parameter, the wider the green transition border is. This parameter influences only the automatically generated green zones and changes their size on their full length. To edit the green zones more precisely, use the corresponding pencils from the Toolbar.
The result of the Soft mode is not always impeccable; it is rather a preliminary mode before manual processing in the Complex mode. Despite these drawbacks, the Soft mode saves you a lot of time and minimizes manual work.