Lasso Mode: Random
Fills with a variation of the foreground color. Selection tool and the Line tools are supported for this mode. Variation amount (how much of R, G and B components randomly is changed in the active color) is visible on the panel if the panel is larger enough to fit it. Click on the + or - modifies the value by 8, Alt+Click by 3 and Shift+Click by 25.
Quick Options
Quick Options are available from Shift+CLicking on the panel.
Symmetry along a Guide: will create a symmetrical copy of the shape using a last added guide. First point of the selection is important because it dictates the direction of the mirror;Always Create a new Layer: will create new layers for each new shape;Preserve Color Lightness: will modify the random color to preserve the original color lightness;