diff --git a/src/spikeinterface/widgets/unit_summary.py b/src/spikeinterface/widgets/unit_summary.py
index f1f85b7dc3..fd7dafd5d6 100644
--- a/src/spikeinterface/widgets/unit_summary.py
+++ b/src/spikeinterface/widgets/unit_summary.py
@@ -18,26 +18,27 @@ class UnitSummaryWidget(BaseWidget):
     """
     Plot a unit summary.
 
-    If amplitudes are alreday computed they are displayed.
+    If amplitudes are alreday computed, they are displayed.
 
     Parameters
     ----------
-    sorting_analyzer : SortingAnalyzer
+    sorting_analyzer: SortingAnalyzer
         The SortingAnalyzer object
-    unit_id : int or str
+    unit_id: int or str
         The unit id to plot the summary of
-    unit_colors : dict or None, default: None
+    unit_colors: dict or None, default: None
         If given, a dictionary with unit ids as keys and colors as values,
-    sparsity : ChannelSparsity or None, default: None
+    sparsity:  ChannelSparsity or None, default: None
         Optional ChannelSparsity to apply.
         If SortingAnalyzer is already sparse, the argument is ignored
-    widget_params : dict or None, default: None
+    subwidget_kwargs: dict or None, default: None
         Parameters for the subwidgets in a nested dictionary
             unit_locations: UnitLocationsWidget (see UnitLocationsWidget for details)
             unit_waveforms: UnitWaveformsWidget (see UnitWaveformsWidget for details)
             unit_waveform_density_map: UnitWaveformDensityMapWidget (see UnitWaveformDensityMapWidget for details)
             autocorrelograms: AutoCorrelogramsWidget (see AutoCorrelogramsWidget for details)
             amplitudes: AmplitudesWidget (see AmplitudesWidget for details)
+        Please note that the unit_colors should not be set in subwidget_kwargs, but directly as a parameter of plot_unit_summary.
     """
 
     # possible_backends = {}
@@ -48,7 +49,7 @@ def __init__(
         unit_id,
         unit_colors=None,
         sparsity=None,
-        widget_params=None,
+        subwidget_kwargs=None,
         backend=None,
         **backend_kwargs,
     ):
@@ -57,15 +58,18 @@ def __init__(
         if unit_colors is None:
             unit_colors = get_unit_colors(sorting_analyzer)
 
-        if widget_params is None:
-            widget_params = dict()
+        if subwidget_kwargs is None:
+            subwidget_kwargs = dict()
+        for kwargs in subwidget_kwargs.values():
+            if "unit_colors" in kwargs:
+                raise ValueError("unit_colors should not be set in subwidget_kwargs, but directly as a parameter of plot_unit_summary")
 
         plot_data = dict(
             sorting_analyzer=sorting_analyzer,
             unit_id=unit_id,
             unit_colors=unit_colors,
             sparsity=sparsity,
-            widget_params=widget_params,
+            subwidget_kwargs=subwidget_kwargs,
         )
 
         BaseWidget.__init__(self, plot_data, backend=backend, **backend_kwargs)
@@ -81,12 +85,12 @@ def plot_matplotlib(self, data_plot, **backend_kwargs):
         unit_colors = dp.unit_colors
         sparsity = dp.sparsity
 
-        widget_params = defaultdict(lambda: dict(), dp.widget_params)
-        unitlocationswidget_params = widget_params["unit_locations"]
-        unitwaveformswidget_params = widget_params["unit_waveforms"]
-        unitwaveformdensitymapwidget_params = widget_params["unit_waveform_density_map"]
-        autocorrelogramswidget_params = widget_params["autocorrelograms"]
-        amplitudeswidget_params = widget_params["amplitudes"]
+        subwidget_kwargs = defaultdict(lambda: dict(), dp.subwidget_kwargs)
+        unitlocationswidget_kwargs = subwidget_kwargs["unit_locations"]
+        unitwaveformswidget_kwargs = subwidget_kwargs["unit_waveforms"]
+        unitwaveformdensitymapwidget_kwargs = subwidget_kwargs["unit_waveform_density_map"]
+        autocorrelogramswidget_kwargs = subwidget_kwargs["autocorrelograms"]
+        amplitudeswidget_kwargs = subwidget_kwargs["amplitudes"]
 
         # force the figure without axes
         if "figsize" not in backend_kwargs:
@@ -117,7 +121,7 @@ def plot_matplotlib(self, data_plot, **backend_kwargs):
                 plot_legend=False,
                 backend="matplotlib",
                 ax=ax1,
-                **unitlocationswidget_params,
+                **unitlocationswidget_kwargs,
             )
 
             unit_locations = sorting_analyzer.get_extension("unit_locations").get_data(outputs="by_unit")
@@ -140,7 +144,7 @@ def plot_matplotlib(self, data_plot, **backend_kwargs):
             sparsity=sparsity,
             backend="matplotlib",
             ax=ax2,
-            **unitwaveformswidget_params,
+            **unitwaveformswidget_kwargs,
         )
 
         ax2.set_title(None)
@@ -154,7 +158,7 @@ def plot_matplotlib(self, data_plot, **backend_kwargs):
             same_axis=False,
             backend="matplotlib",
             ax=ax3,
-            **unitwaveformdensitymapwidget_params,
+            **unitwaveformdensitymapwidget_kwargs,
         )
         ax3.set_ylabel(None)
 
@@ -166,7 +170,7 @@ def plot_matplotlib(self, data_plot, **backend_kwargs):
                 unit_colors=unit_colors,
                 backend="matplotlib",
                 ax=ax4,
-                **autocorrelogramswidget_params,
+                **autocorrelogramswidget_kwargs,
             )
 
             ax4.set_title(None)
@@ -184,7 +188,7 @@ def plot_matplotlib(self, data_plot, **backend_kwargs):
                 plot_histograms=True,
                 backend="matplotlib",
                 axes=axes,
-                **amplitudeswidget_params,
+                **amplitudeswidget_kwargs,
             )
 
         fig.suptitle(f"unit_id: {dp.unit_id}")