Mike Rundle: “The main light source comes from the top but that doesn’t mean you can’t introduce a secondary light source for emphasis. Below I’ve created a custom navigation bar for an iPhone application that uses a subtle radial highlight for added dimension and detail. The Blend Mode has been set to Overlay to brighten and saturate the overall color and the transparency has been knocked way down to keep it realistic. Also note the edge highlights to make it look more like a raised surface.”
My advice to any budding software developer, work with a great designer and UX person. It’ll make you look like a million bucks. I know from experience, having worked with a few GREAT DESIGNERS.
Mike is the author of Design then Code.