By popular request, a flatting tutorial video! Flatters, sometimes called coloring assistants, break up all of the elements on the page into separate colors. It's sometimes called color separations. The colors themselves are irrelevant, but they make the colorist's job easier by allowing them to just select the areas with a magic wand, as opposed to re-lassoing everything when coloring.
There are many, many wrong ways for a flatter to flat pages. I'm constantly hearing from fellow colorists that have a hard time finding new flatters that know how to do it properly.
So I made this video to try to rectify that! I'm sure there's more than one correct way to do it, but this is my way, and I know it works!