diff --git a/python/python.ml b/python/python.ml
index 2ec1ef4..5935bd6 100644
--- a/python/python.ml
+++ b/python/python.ml
@@ -23,17 +23,35 @@ type _ t = Py.Object.t
 
 type figure
 
-let of_graph Graph.{type_; data} =
+let of_graph ?(z = [||]) ?text Graph.{type_; data} =
   let c =
     match type_ with
     | "scatter" -> "Scatter"
     | "scatter3d" -> "Scatter3d"
+    | "scattergl" -> "Scattergl"
     | "bar" -> "Bar"
     | "pie" -> "Pie"
     | _ -> assert false
   in
+  let base_attributes = of_attributes (data :> Attribute.t list) in
+  let marker_attributes = Some [
+    "colorscale", Py.String.of_string "Viridis";
+    "color", Py.List.of_array_map Py.Float.of_float z;
+    "size", Py.Int.of_int 1;
+  ]
+  in
+  let py_attributes =
+    List.concat [
+      base_attributes;
+      (Option.fold ~none:[] ~some:(fun l ->
+        [ "marker", Py.Dict.of_bindings_string l ]) marker_attributes);
+      (Option.fold ~none:[] ~some:(fun a ->
+        [ "text", Py.List.of_array_map Py.String.of_string a ]
+      ) text)
+    ]
+  in
   Py.Module.get_function_with_keywords go c [||]
-    (of_attributes (data :> Attribute.t list))
+    py_attributes
 
 let of_layout layout =
   let layout = (layout : Layout.t :> Attribute.t list) in
@@ -42,8 +60,8 @@ let of_layout layout =
     of_value
     layout
 
-let of_figure fig : figure t =
-  let data = Py.List.of_list_map of_graph fig.Figure.graphs in
+let of_figure ?z ?text fig : figure t =
+  let data = Py.List.of_list_map (of_graph ?z ?text) fig.Figure.graphs in
   let layout = of_layout fig.layout in
   Py.Module.get_function_with_keywords go "Figure" [||]
     ["data", data;
diff --git a/python/python.mli b/python/python.mli
index ffc2007..1d9580d 100644
--- a/python/python.mli
+++ b/python/python.mli
@@ -2,7 +2,7 @@ type _ t = private Py.Object.t
 
 type figure
 
-val of_figure : Plotly.Figure.t -> figure t
+val of_figure : ?z:float array -> ?text:string array -> Plotly.Figure.t -> figure t
 
 val show : ?renderer:string -> figure t -> unit
 val write_image : figure t -> string -> unit
diff --git a/src/plotly.ml b/src/plotly.ml
index 417adb9..ab72989 100644
--- a/src/plotly.ml
+++ b/src/plotly.ml
@@ -51,6 +51,7 @@ module Graph = struct
 
   let scatter data_list = { type_ = "scatter"; data= List.flatten data_list }
   let scatter3d data_list = { type_ = "scatter3d"; data= List.flatten data_list }
+  let scattergl data_list = { type_ = "scattergl"; data= List.flatten data_list }
   let bar data_list = { type_ = "bar"; data= List.flatten data_list }
   let pie data_list = { type_ = "pie"; data= List.flatten data_list }
   let histogram data_list = { type_ = "histogram"; data= List.flatten data_list }
diff --git a/src/plotly.mli b/src/plotly.mli
index 3e9033a..a17b299 100644
--- a/src/plotly.mli
+++ b/src/plotly.mli
@@ -77,6 +77,7 @@ module Graph : sig
 
   val scatter : Data.t list -> t
   val scatter3d : Data.t list -> t
+  val scattergl : Data.t list -> t
   val bar : Data.t list -> t
   val pie : Data.t list -> t
   val histogram : Data.t list -> t