Configures the box that appears when users zoom the chart by selecting an area with the drag gesture. Applies only if dragToZoom is true.
Specifies the drag box's color.
This option supports the following colors:
- Hexadecimal colors
- RGB colors
- RGBA colors
- Predefined/cross-browser color names
- Predefined SVG colors
Specifies the drag box's transparency.
This option accepts a value from 0 to 1: 0 makes the drag box transparent; 1 makes it opaque.