I think many have asked you for clipping masks; I will write only in the subject that I also want that, so I will talk about something else. When I use the "Magic Wand" function and then use the "Fill" function or the brush, there is a problem: the color near the line art remains without color. I always try to be clean but the color always remains about a pixel away from the line made by the Wand. I think it would be fantastic to add a sort of "Fill tolerance", where it is possible to establish within how many pixels the color can go beyond the boundary outlined by the Wand or line art.