Change the color of a Software Instrument channel strip
In the Attributes tab of the Channel Strip Inspector, choose a color from the Color pop-up menu.
Each channel strip has a color, which appears at the bottom of the channel strip and as a layer above the keyboard screen control in the workspace and the Layer Editor. You can change the color to make it easier to visually distinguish channel strips.
In the Attributes tab of the Channel Strip Inspector, choose a color from the Color pop-up menu.