"Show Desktop" button screenshot in help file should not be Win8

The screenshot showcasing the "Hide the 'Show Desktop' button" uses the Win8 Aero visual style in which the "Show Desktop" button isn't actually overly obvious. It would be more effective if the screenshot were taken using the Win7 Aero visual style or Windows Classic.

Yes, I realize it's Win8 for consistency, but clarity should be more important.