In Diagnostics this ICON will open the Color Legend when a Flow diagram is on the screen showing the colors that are currently displayed. Unchecking the box at the bottom of the Color Legend will show all the colors assigned to the flow diagram and their meaning. This is true anywhere predefined colors are used in eXpress. If the Analyst does not understand the meaning of colors being displayed, select the color template ICON and uncheck the box at the bottom to display the used colors and their meanings for the displayed application. In Diagnostics and FMECA the Color Legend Setting ICON is greyed out and turned off.