It depends on the length of the line. Do a Help, Real Charts to see a good explanation. This is from the Help:

At the top of the screen, if a track has RealTracks, but is NOT a RealCharts track, then the track name is green.

Real Instrument charts: If a track has a RealChart, the track name is green and underlined with a short line.

RealGuitar charts: If a track has RealChart, and is a guitar track with accurate tab and on-screen guitar fretboard display, then it is green and underlined with a long line.


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