Sometimes you get drawings with colors that just don't fit your standards or styles. Clay Riggs must have had that problem more than once because Tip #1958 (Change Colors) makes it easy to do this type of edit. The command Chlc lets you select an entity representative of the layer to change and then pick a color code from the standard AutoCAD Color dialog box. This is a nice utility that demonstrates the productivity-enhancing powers of Visual LISP for streamlining operations.