If you have multiple 4.6 B systems open a lot, like DEV, TEST, PROD, it may be helpful to you to set each system...
to a different color for easy identification.
After you have logged on to SAP, find the last icon on the main menu. It looks like a PC monitor with color stripes and is after the help (?) icon.
Select 'New Visual Design'. Select the 'Color Settings' tab. Choose a color from the list. Now, click the 'Systems' button and select the systems in which to apply the color.