2.6.1.3 Toggling the Layer Boundary
Careful alignment or color matching between layers is often required
for layer edges that are overlapping or abutting. The layer
boundaries of the active layer can be seen in the image window, even
when the layer contents cannot be seen. This boundary, consisting of
a black-and-yellow dashed line, can impede the precision with which
alignment and color matching work is performed. Under these
circumstances it is useful to visually toggle off the layer
boundaries, which is easily done with the
Toggle Selection
function, found in the
Image:View menu. Alternatively,
C-t can be typed in the image window. The
visibility of the layer boundaries is restored by toggling a second
time.