Colors = id:canvas value:rgb(0.937,0.937,0.937) id:linemark value:gray(0.8) id:linemark2 value:gray(0.9) BackgroundColors = canvas:canvas PlotData = mark:(line,linemark) from:start till:4 color:yellow shift:(20,-5) text:René Arnoux (Laps 1–4) from:4 till:68 color:skyblue shift:(20,-5) text:Keke Rosberg (Laps 5–68) from:68 till:end color:magenta shift:(20,-5) text:John Watson (Laps 69–70)