I haven\'t been able to find anything that can colour the background and/or add a tab bar to the SMMS IDE to better identify the difference between prod, test and dev servers. S
All version of SSMS since at least SQL Server 2008 R2 (and I think 2008) include a built-in ability to change the colour of the connection bar at the bottom of a query window - when setting up a new connection for a query, click the Options >>
button, then set the colour by ticking use custom colour
(then selecting your chosen colour) on the Connection Properties
tab.
I've had SSMS Tools Pack connection colouring working but I prefer the built-in option.
EDIT I just tried SSMS Tools pack colouring again, and I agree it appears not to be working in the current verion (2.1.0) in SSMS 2008 R2.