diff --git a/mathics/builtin/box/graphics3d.py b/mathics/builtin/box/graphics3d.py
index 272161c2e..e6975c1fb 100644
--- a/mathics/builtin/box/graphics3d.py
+++ b/mathics/builtin/box/graphics3d.py
@@ -63,40 +63,40 @@ def _prepare_elements(self, leaves, options, max_width=None):
 
         if lighting == "System`Automatic":
             self.lighting = [
-                {"type": "Ambient", "color": [0.3, 0.2, 0.4]},
+                {"type": "ambient", "color": [0.3, 0.2, 0.4]},
                 {
-                    "type": "Directional",
+                    "type": "directional",
                     "color": [0.8, 0.0, 0.0],
-                    "position": [2, 0, 2],
+                    "coords": [[2, 0, 2]],
                 },
                 {
-                    "type": "Directional",
+                    "type": "directional",
                     "color": [0.0, 0.8, 0.0],
-                    "position": [2, 2, 2],
+                    "coords": [[2, 2, 2]],
                 },
                 {
-                    "type": "Directional",
+                    "type": "directional",
                     "color": [0.0, 0.0, 0.8],
-                    "position": [0, 2, 2],
+                    "coords": [[0, 2, 2]],
                 },
             ]
         elif lighting == "Neutral":  # Lighting->"Neutral"
             self.lighting = [
-                {"type": "Ambient", "color": [0.3, 0.3, 0.3]},
+                {"type": "ambient", "color": [0.3, 0.3, 0.3]},
                 {
-                    "type": "Directional",
+                    "type": "directional",
                     "color": [0.3, 0.3, 0.3],
-                    "position": [2, 0, 2],
+                    "coords": [[2, 0, 2]],
                 },
                 {
-                    "type": "Directional",
+                    "type": "directional",
                     "color": [0.3, 0.3, 0.3],
-                    "position": [2, 2, 2],
+                    "coords": [[2, 2, 2]],
                 },
                 {
-                    "type": "Directional",
+                    "type": "directional",
                     "color": [0.3, 0.3, 0.3],
-                    "position": [0, 2, 2],
+                    "coords": [[0, 2, 2]],
                 },
             ]
         elif lighting == "System`None":
@@ -114,7 +114,7 @@ def _prepare_elements(self, leaves, options, max_width=None):
                     color = get_class(head)(light[1])
                     if light[0] == '"Ambient"':
                         self.lighting.append(
-                            {"type": "Ambient", "color": color.to_rgba()}
+                            {"type": "ambient", "color": color.to_rgba()}
                         )
                     elif light[0] == '"Directional"':
                         position = [0, 0, 0]
@@ -129,9 +129,9 @@ def _prepare_elements(self, leaves, options, max_width=None):
                                 ]
                         self.lighting.append(
                             {
-                                "type": "Directional",
+                                "type": "directional",
                                 "color": color.to_rgba(),
-                                "position": position,
+                                "coords": [position],
                             }
                         )
                     elif light[0] == '"Point"':
@@ -140,9 +140,9 @@ def _prepare_elements(self, leaves, options, max_width=None):
                             position = light[2]
                         self.lighting.append(
                             {
-                                "type": "Point",
+                                "type": "point",
                                 "color": color.to_rgba(),
-                                "position": position,
+                                "coords": [position],
                             }
                         )
                     elif light[0] == '"Spot"':
@@ -165,9 +165,9 @@ def _prepare_elements(self, leaves, options, max_width=None):
                         angle = light[3]
                         self.lighting.append(
                             {
-                                "type": "Spot",
+                                "type": "spot",
                                 "color": color.to_rgba(),
-                                "position": position,
+                                "coords": [position],
                                 "target": target,
                                 "angle": angle,
                             }
@@ -295,20 +295,14 @@ def calc_dimensions(final_pass=True):
                 # Rescale lighting
                 for i, light in enumerate(self.lighting):
                     if self.lighting[i]["type"] != "Ambient":
-                        self.lighting[i]["position"] = [
-                            light["position"][j] * boxscale[j] for j in range(3)
+                        self.lighting[i]["coords"][0] = [
+                            light["coords"][0][j] * boxscale[j] for j in range(3)
                         ]
                     if self.lighting[i]["type"] == "Spot":
                         self.lighting[i]["target"] = [
                             light["target"][j] * boxscale[j] for j in range(3)
                         ]
 
-                # Rescale viewpoint
-                self.viewpoint = [
-                    vp * max([xmax - xmin, ymax - ymin, zmax - zmin])
-                    for vp in self.viewpoint
-                ]
-
             w = 0 if (xmin is None or xmax is None) else xmax - xmin
             h = 0 if (ymin is None or ymax is None) else ymax - ymin
 
@@ -363,9 +357,6 @@ def boxes_to_json(self, leaves=None, **options):
 
         elements._apply_boxscaling(boxscale)
 
-        xmin, xmax, ymin, ymax, zmin, zmax, boxscale, w, h = calc_dimensions()
-        elements.view_width = w
-
         # FIXME: json is the only thing we can convert MathML into.
         # Handle other graphics formats.
         format_fn = lookup_method(elements, "json")
@@ -373,7 +364,7 @@ def boxes_to_json(self, leaves=None, **options):
         json_repr = format_fn(elements, **options)
 
         # TODO: Cubeoid (like this)
-        # json_repr = [{'faceColor': (1, 1, 1, 1), 'position': [(0,0,0), None],
+        # json_repr = [{'color': (1, 1, 1, 1), 'position': [(0,0,0), None],
         # 'size':[(1,1,1), None], 'type': 'cube'}]
 
         json_repr = json.dumps(
@@ -384,14 +375,6 @@ def boxes_to_json(self, leaves=None, **options):
                     "ticks": ticks,
                     "ticks_style": js_ticks_style,
                 },
-                "extent": {
-                    "xmin": xmin,
-                    "xmax": xmax,
-                    "ymin": ymin,
-                    "ymax": ymax,
-                    "zmin": zmin,
-                    "zmax": zmax,
-                },
                 "lighting": self.lighting,
                 "viewpoint": self.viewpoint,
             }
@@ -601,7 +584,11 @@ def boxes_to_tex(self, leaves=None, **options):
 """.format(
             asy_number(width / 60),
             asy_number(height / 60),
-            self.viewpoint,
+            # Rescale viewpoint
+            [
+                vp * max([xmax - xmin, ymax - ymin, zmax - zmin])
+                for vp in self.viewpoint
+            ],
             asy,
             boundbox_asy,
         )
diff --git a/mathics/format/json.py b/mathics/format/json.py
index c5ba4b399..27cf2afdf 100644
--- a/mathics/format/json.py
+++ b/mathics/format/json.py
@@ -41,7 +41,6 @@ def convert_coord_collection(
                     "type": object_type,
                     "coords": [coords.pos() for coords in items],
                     "opacity": opacity,
-                    "rgb_color": color[:3],
                 },
             }
         )
@@ -93,7 +92,7 @@ def cylinder_3d_box(self):
         [self.points],
         "cylinder",
         face_color,
-        {"faceColor": face_color, "radius": self.radius},
+        {"color": face_color, "radius": self.radius},
     )
     # print("### json Cylinder3DBox", data)
     return data
@@ -163,7 +162,7 @@ def polygon_3d_box(self) -> list:
         self.lines,
         "polygon",
         face_color,
-        {"faceColor": face_color},
+        {"color": face_color},
     )
     # print("### json Polygon3DBox", data)
     return data
@@ -180,7 +179,7 @@ def sphere_3d_box(self) -> list:
         [self.points],
         "sphere",
         face_color,
-        {"faceColor": face_color, "radius": self.radius},
+        {"color": face_color, "radius": self.radius},
     )
     # print("### json Sphere3DBox", data)
     return data