Up until SQL Server 2008 R2, you had to customize the font and background colors manually in SSMS.
SQL Server Denali lets you import your Visual Studio settings such as the custom colors in the Text Editor.
The fact that the Denali SSMS splash screen shows Powered By Visual Studio probably has a lot to do with that.
In Visual Studio go to Options, Environment, Import and Export Settings and copy the location where your settings are stored with the .vssettings extension.
Next open SSMS, go to Options, Environment, Import and Export Settings and locate your .vssettings file you copied from Visual Studio using the team settings file option.