Gas Man® uses the color that you select from this drop-down to represent the anesthetic agent. This selection is used:

• for the font color on the tabs at the top of all Gas Man® information panels, and
• in the Gas Man® Overlay graph as the line color for this agent

You can also context click (right click) this table on the row for an anesthetic, which will display a menu you can use to perform several functions in the context of that anesthetic. (see Agent Context Menu).