The new PowerShell ISE script editor in PowerShell v3 lets you customize a lot of colors, so if a particular color does not show well on a projector, for example, simply change it. You can do that via GUI, but you can also do it programmatically. For example, from your profile script:
$psISE.Options.RestoreDefaultConsoleTokenColors $psISE.Options.RestoreDefaultTokenColors $psISE.Options.RestoreDefaultXmlTokenColors $psISE.Options.ConsolePaneBackgroundColor $psISE.Options.ConsolePaneForegroundColor $psISE.Options.ConsolePaneTextBackgroundColor $psISE.Options.ConsoleTokenColors $psISE.Options.DebugBackgroundColor $psISE.Options.DebugForegroundColor $psISE.Options.ErrorBackgroundColor $psISE.Options.ErrorForegroundColor $psISE.Options.ScriptPaneBackgroundColor $psISE.Options.ScriptPaneForegroundColor $psISE.Options.TokenColors $psISE.Options.VerboseBackgroundColor $psISE.Options.VerboseForegroundColor $psISE.Options.WarningBackgroundColor $psISE.Options.WarningForegroundColor $psISE.Options.XmlTokenColors
