When you insert a Microsoft Windows Metafile (Windows Metafile Format (WMF): A vector graphics format for Windows-compatible computers used mostly as a clip art format in word-processing documents.) from the Clip Organizer, you can change the colors in the picture (for example, to match the color scheme of your presentation). If the picture is a bitmap (bitmap: A picture made from a series of small dots, much like a piece of graph paper with certain squares filled in to form shapes and lines. When stored as files, bitmaps usually have the extension .bmp.), .jpg, .gif, or .png file, you need to edit its colors in an image editing program.