Add colorbar options for coloraxis

Author: joelostblom

Diff for: packages/python/plotly/templategen/utils/__init__.py

@@ -82,9 +82,13 @@ def initialize_template(
     template.layout.plot_bgcolor = panel_background_clr
     template.layout.polar.bgcolor = panel_background_clr
     template.layout.ternary.bgcolor = panel_background_clr
-    set_all_colorbars(template, colorbar_common)
+
     cartesian_axis = dict(axis_common, zerolinecolor=zerolinecolor_clr)
 
+    # Colorbars
+    set_all_colorbars(template, colorbar_common)
+    template.layout.coloraxis.colorbar = colorbar_common
+
     # Colorscales
     template.layout.colorscale.sequential = colorscale
     if colorscale_minus is not None: