Although we do not have a canned graphics library, you can get bitmaps of buttons and other controls to use in your interface from iStockphoto. There you will find good quality graphics, for a low cost. Do a search on “buttons” to see a sample. Some other options: the Open Clipart Library or find other image galleries. You can use Inkscape to convert a .SVG to a .BMP. You might also consider using a tool like GIMP. See a Reach Technology video tutorials for making graphic elements. You might also consider working with an interface design firm like GUIFX.