Sections can be highlighted using different background colours. These can be selected from the Audio Side Bar:
The boundary line below each group can be dragged to reveal or hide colours.
To colour a section while in the Audio pane, click in the section to be highlighted and choose the colour from the side bar, or use the simplified shortcut; number keys 6-9.
To colour a section from the other panes, click in the section to be highlighted, change the Side bar to the Audio Sidebar using the tabs along the top and choose the colour. Or use the complex shortcut; CMD Alt Shift + Number keys 6-9.
Sections can be returned to the default colour using the default section colour button on the Audio Side Bar or CMD Alt Shift 0.
You can edit the Colour Key; allowing you to change the colours and text of each option. See Changing Colours for more information.