You can change background colors in the drawing window, stencil window, print preview window, full-screen view, drawing page, and shape names in stencils.
On the Tools menu, click Options.
On the Advanced tab, click Color Settings.
Choose the color options you want.
Tip: By default, drawing backgrounds and stencil backgrounds are a single color. If your monitor is set to 32-bit color, you can set these backgrounds to grade smoothly from one color into another.