Use Windows Personalization settings (right click on Windows 7 desktop). Choose a neutral theme (blue) to start.
Then in the Personalization windows, in Windows Color, use Windows Classic.
This will yield Windows with black and some white borders.
Desktop icons will be borderless (where I said black that was Window Borders) and the Desktop icons show up very clearly.
If you wish to add a picture, choose one that works with a clear setup. Some pictures damage the ability to read the screen.
You might wish to use the Screensaver to show pictures and leave your working screen more plain. After all, work means Apps, not looking at pictures.
