Hi, I have a suggestion to improve Photoshop. Most illustrators and designers, who work for print with lineart, need to trap colours under the black lines to avoid white edges next to black lines when printed. I guess that the most common way to trap lines in Photoshop is to make a selection and then expand it so that selection goes under the lines. Unfortunately this doesn't work too well when working with lines made width Pressure for size activated or scanned brush strokes, because you can't find the middle point of the strokes with variable width by simply expanding selection. That's why some illustrators are using another programs such as Wintopo to make trapping faster. If you are not familiar with Wintopo, it is a program that changes all strokes to 1px wide. When changed the width of the whole line to one pixel, you can copy this one pixel wide line under your original lineart in Photoshop and by colouring this new layer, your colours get always maximum trapping, because this line is always in the centre of the original line. If this option would be possible in Photoshop by making 1 pixel wide layers from the whole original lineart layers or from selected are directly in to your photoshop-document, it would save a lot of time and make trapping really fast and simple in every situation.