Function TechniqueLineChart

TechniqueLineChart(
    __namedParameters: {
        crosshairTime: number | null;
        illustration?: (value: number) => ReactNode;
        leftSeries: LineSeriesSpec;
        onCrosshairChange: (time: number) => void;
        onDragStateChange?: (dragging: boolean) => void;
        phases?: PhaseSegment[];
        plotHeight?: number;
        rightSeries?: LineSeriesSpec;
        title: string;
    },
): Element
Native-SVG dual-axis line chart for a single rep — two LineSeriesSpec series sharing one X axis, each with its own Y axis aligned to a common zero line. Gradient fills under each line, optional phase-transition overlay, and a scrubbable crosshair whose time is owned by the parent (crosshairTime + onCrosshairChange) so several charts on a page stay in sync. Pure rendering — no store access.
Parameters
- __namedParameters: {
      crosshairTime: number | null;
      illustration?: (value: number) => ReactNode;
      leftSeries: LineSeriesSpec;
      onCrosshairChange: (time: number) => void;
      onDragStateChange?: (dragging: boolean) => void;
      phases?: PhaseSegment[];
      plotHeight?: number;
      rightSeries?: LineSeriesSpec;
      title: string;
  }
Returns Element
- Defined in ui/src/charts/technique-line-chart.tsx:171