Color of points used in `react_sparkline`.
     
    
    Usage
    highlight_points(
  all = "transparent",
  first = "transparent",
  last = "transparent",
  min = "transparent",
  max = "transparent"
)
 
    
    Arguments
    - all, first, last, min, max
- The colors of all, first, last, min, and max points. 
 
    
    Value
    a function that provides colors for specific points.