Add a reference line inside a chart
{% reference_line y=2500000 color="red"/%}
label_options={ position = value align = value color = "string" background_color = "string" padding = 0 fmt = value hide_value = true border = { ... } text = { ... } }
effects
enum
string
number
boolean
object
line_options={ color = "string" width = 0 type = value opacity = 0 }
symbols={ start = { ... } end = { ... } }