diff --git a/weldx_widgets/generic.py b/weldx_widgets/generic.py
index de6673b..5fa6c40 100644
--- a/weldx_widgets/generic.py
+++ b/weldx_widgets/generic.py
@@ -10,11 +10,11 @@
 
 import numpy as np
 import pandas as pd
-import weldx
-from IPython import get_ipython
 from ipyfilechooser import FileChooser
+from IPython import get_ipython
 from ipywidgets import HTML, Button, HBox, Label
 
+import weldx
 from weldx_widgets.widget_base import WeldxImportExport, WidgetMyHBox, WidgetMyVBox
 from weldx_widgets.widget_factory import (
     WidgetLabeledTextInput,
@@ -94,18 +94,12 @@ class WidgetTimeSeries(WidgetMyVBox, WeldxImportExport):
     """Preliminary time series editing widget."""
 
     # TODO: handle math-expr
-    def __init__(
-        self, base_unit, time_unit="s", base_data="0", time_data="0", title=""
-    ):
+    def __init__(self, base_unit, time_unit="s", base_data="0", time_data="0", title=""):
         layout_prefilled_text = copy_layout(textbox_layout)
         layout_prefilled_text.width = "300px"
 
-        self.base_data = WidgetLabeledTextInput(
-            label_text="Input dimension", prefilled_text=base_data
-        )
-        self.time_data = WidgetLabeledTextInput(
-            label_text="Time steps", prefilled_text=time_data
-        )
+        self.base_data = WidgetLabeledTextInput(label_text="Input dimension", prefilled_text=base_data)
+        self.time_data = WidgetLabeledTextInput(label_text="Time steps", prefilled_text=time_data)
         self.base_data.text.layout = layout_prefilled_text
         self.time_data.text.layout = layout_prefilled_text
 
@@ -148,7 +142,7 @@ def from_tree(self, tree: dict):
         else:
             self.time_data.text_value = ""
         if np.__version__ > "2":
-            with np.printoptions(legacy='1.25'):
+            with np.printoptions(legacy="1.25"):
                 self.base_data.text_value = repr(list(ts.data.magnitude))
         else:
             self.base_data.text_value = repr(list(ts.data.magnitude))
diff --git a/weldx_widgets/tests/test_visualization.py b/weldx_widgets/tests/test_visualization.py
index b781891..14b2716 100644
--- a/weldx_widgets/tests/test_visualization.py
+++ b/weldx_widgets/tests/test_visualization.py
@@ -20,18 +20,14 @@ def test_plot_coordinate_system():
         [[-1, 0, 0], [0, -1, 0], [0, 0, 1]],
     ]
     coordinates_tdp = Q_([[0, 0, 1], [0, 0, 2], [0, -1, 0]], "mm")
-    lcs_tdp = tf.LocalCoordinateSystem(
-        orientation=orientation_tdp, coordinates=coordinates_tdp, time=time
-    )
+    lcs_tdp = tf.LocalCoordinateSystem(orientation=orientation_tdp, coordinates=coordinates_tdp, time=time)
 
     _, ax = plt.subplots(subplot_kw=dict(projection="3d"))
 
     vs.draw_coordinate_system_matplotlib(lcs_constant, ax, "g")
     vs.draw_coordinate_system_matplotlib(lcs_tdp, ax, "r", "2016-01-10")
     vs.draw_coordinate_system_matplotlib(lcs_tdp, ax, "b", "2016-01-11", time_idx=1)
-    vs.draw_coordinate_system_matplotlib(
-        lcs_tdp, ax, "y", "2016-01-12", pd.TimedeltaIndex([12], "s")
-    )
+    vs.draw_coordinate_system_matplotlib(lcs_tdp, ax, "y", "2016-01-12", pd.TimedeltaIndex([12], "s"))
 
     # exceptions ------------------------------------------
 
diff --git a/weldx_widgets/visualization/csm_k3d.py b/weldx_widgets/visualization/csm_k3d.py
index 0f59eb6..457c03f 100644
--- a/weldx_widgets/visualization/csm_k3d.py
+++ b/weldx_widgets/visualization/csm_k3d.py
@@ -42,9 +42,7 @@ def _get_limits_from_stack(limits):
     return np.vstack([mins, maxs])
 
 
-def _get_coordinates_and_orientation(
-    lcs: LocalCoordinateSystem, index: int = 0
-) -> tuple[pint.Quantity, pint.Quantity]:
+def _get_coordinates_and_orientation(lcs: LocalCoordinateSystem, index: int = 0) -> tuple[pint.Quantity, pint.Quantity]:
     """Get the coordinates and orientation of a coordinate system.
 
     Parameters
@@ -68,20 +66,14 @@ def _get_coordinates_and_orientation(
             "Interpolate values before plotting to solve this issue"
         )
 
-    coordinates = lcs.coordinates.isel(time=index, missing_dims="ignore").data.astype(
-        "float32"
-    )
+    coordinates = lcs.coordinates.isel(time=index, missing_dims="ignore").data.astype("float32")
 
-    orientation = lcs.orientation.isel(time=index, missing_dims="ignore").data.astype(
-        "float32"
-    )
+    orientation = lcs.orientation.isel(time=index, missing_dims="ignore").data.astype("float32")
 
     return coordinates, orientation
 
 
-def _create_model_matrix(
-    coordinates: pint.Quantity, orientation: np.ndarray
-) -> np.ndarray:
+def _create_model_matrix(coordinates: pint.Quantity, orientation: np.ndarray) -> np.ndarray:
     """Create the model matrix from an orientation and coordinates.
 
     Parameters
@@ -487,9 +479,7 @@ def update_model_matrix(self, model_mat):
         if self._mesh is not None:
             self._mesh.model_matrix = model_mat
         if self._label is not None:
-            self._label.position = (
-                np.matmul(model_mat[0:3, 0:3], self._label_pos) + model_mat[0:3, 3]
-            )
+            self._label.position = np.matmul(model_mat[0:3, 0:3], self._label_pos) + model_mat[0:3, 3]
 
 
 class CoordinateSystemManagerVisualizerK3D:
@@ -780,9 +770,7 @@ def _create_controls(
         traces_cb = Checkbox(value=show_traces, description="show traces", layout=lo)
         labels_cb = Checkbox(value=show_labels, description="show labels", layout=lo)
         wf_cb = Checkbox(value=show_wireframe, description="show wireframe", layout=lo)
-        data_labels_cb = Checkbox(
-            value=show_data_labels, description="show data labels", layout=lo
-        )
+        data_labels_cb = Checkbox(value=show_data_labels, description="show data labels", layout=lo)
 
         jslink((play, "value"), (time_slider, "value"))
         play.disabled = disable_time_widgets
@@ -790,16 +778,12 @@ def _create_controls(
 
         # register callbacks
         time_slider.observe(lambda c: self.update_time_index(c["new"]), names="value")
-        reference_dropdown.observe(
-            lambda c: self.update_reference_system(c["new"]), names="value"
-        )
+        reference_dropdown.observe(lambda c: self.update_reference_system(c["new"]), names="value")
         vectors_cb.observe(lambda c: self.show_vectors(c["new"]), names="value")
         origin_cb.observe(lambda c: self.show_origins(c["new"]), names="value")
         traces_cb.observe(lambda c: self.show_traces(c["new"]), names="value")
         labels_cb.observe(lambda c: self.show_labels(c["new"]), names="value")
-        data_dropdown.observe(
-            lambda c: self.set_data_visualization_method(c["new"]), names="value"
-        )
+        data_dropdown.observe(lambda c: self.set_data_visualization_method(c["new"]), names="value")
         data_labels_cb.observe(lambda c: self.show_data_labels(c["new"]), names="value")
         wf_cb.observe(lambda c: self.show_wireframes(c["new"]), names="value")
 
@@ -817,9 +801,7 @@ def _get_model_matrix(self, lcs_name):
             return lcs_vis.origin.model_matrix
 
         lcs = self._csm.get_cs(lcs_name, self._current_reference_system)
-        coordinates, orientation = _get_coordinates_and_orientation(
-            lcs, self._current_time_index
-        )
+        coordinates, orientation = _get_coordinates_and_orientation(lcs, self._current_time_index)
         return _create_model_matrix(coordinates, orientation)
 
     def _update_spatial_data(self):
@@ -916,9 +898,7 @@ def update_reference_system(self, reference_system):
         """
         self._current_reference_system = reference_system
         for lcs_name, lcs_vis in self._lcs_vis.items():
-            lcs_vis.update_lcs(
-                self._csm.get_cs(lcs_name, reference_system), self._current_time_index
-            )
+            lcs_vis.update_lcs(self._csm.get_cs(lcs_name, reference_system), self._current_time_index)
         self._update_spatial_data()
 
     def update_time_index(self, index: int):
diff --git a/weldx_widgets/visualization/csm_mpl.py b/weldx_widgets/visualization/csm_mpl.py
index beaf721..366dbc6 100644
--- a/weldx_widgets/visualization/csm_mpl.py
+++ b/weldx_widgets/visualization/csm_mpl.py
@@ -54,9 +54,7 @@ def new_3d_figure_and_axes(
         The matplotlib axes object
 
     """
-    fig, ax = plt.subplots(
-        ncols=num_subplots, subplot_kw={"projection": "3d", "proj_type": "ortho"}
-    )
+    fig, ax = plt.subplots(ncols=num_subplots, subplot_kw={"projection": "3d", "proj_type": "ortho"})
     try:
         fig.canvas.layout.height = f"{height}px"
         fig.canvas.layout.width = f"{width}px"
@@ -260,11 +258,7 @@ def plot_local_coordinate_system_matplotlib(
             show_vectors=show_vectors,
         )
 
-    if (
-        show_trace
-        and not isinstance(lcs.coordinates, TimeSeries)
-        and lcs.coordinates.data.ndim > 1
-    ):
+    if show_trace and not isinstance(lcs.coordinates, TimeSeries) and lcs.coordinates.data.ndim > 1:
         coords = lcs.coordinates.data
         if isinstance(coords, Q_):
             coords = coords.to(_DEFAULT_LEN_UNIT).m
diff --git a/weldx_widgets/widget_base.py b/weldx_widgets/widget_base.py
index 2abe94b..5daef42 100644
--- a/weldx_widgets/widget_base.py
+++ b/weldx_widgets/widget_base.py
@@ -14,11 +14,7 @@ def metaclass_resolver(*classes):
     def cls_name(classes):
         return "_".join(mcls.__name__ for mcls in classes)
 
-    metaclass = (
-        metaclass[0]
-        if len(metaclass) == 1
-        else type(cls_name(metaclass), metaclass, {})
-    )  # class M_C
+    metaclass = metaclass[0] if len(metaclass) == 1 else type(cls_name(metaclass), metaclass, {})  # class M_C
     return metaclass(cls_name(classes), classes, {})  # class C
 
 
diff --git a/weldx_widgets/widget_evaluate.py b/weldx_widgets/widget_evaluate.py
index 4719ab6..9f879ee 100644
--- a/weldx_widgets/widget_evaluate.py
+++ b/weldx_widgets/widget_evaluate.py
@@ -104,9 +104,7 @@ def make_output():
         # start and end time of experiment
         t = (file["TCP"].time[[0, -1]]).as_timedelta()
 
-        WidgetProcessInfo(
-            file["process"]["welding_process"], t, out=tabs["Process parameters"]
-        )
+        WidgetProcessInfo(file["process"]["welding_process"], t, out=tabs["Process parameters"])
 
         groove = file["workpiece"]["geometry"]["groove_shape"]
         with tabs["Specimen"]:
@@ -132,10 +130,7 @@ def make_output():
         # clean up scan data (fill up NaNs)
         scans_available = True
         try:
-            foo = [
-                _clean_nans_from_spatial_data(csm.get_data(f"scan_{i}"))
-                for i in range(0, 2)
-            ]
+            foo = [_clean_nans_from_spatial_data(csm.get_data(f"scan_{i}")) for i in range(0, 2)]
             assert len(foo) == 2
             # assert csm.get_data("scan_1").coordinates.
         except KeyError:
@@ -145,18 +140,14 @@ def make_output():
         spatial_data_geo_full = geometry_full_width.spatial_data(
             profile_raster_width=Q_(4, "mm"), trace_raster_width=Q_(60, "mm")
         )
-        spatial_data_geo_full.coordinates = spatial_data_geo_full.coordinates.astype(
-            "float32"
-        )
+        spatial_data_geo_full.coordinates = spatial_data_geo_full.coordinates.astype("float32")
 
         spatial_data_geo_reduced = geometry.spatial_data(
             profile_raster_width=Q_(4, "mm"), trace_raster_width=Q_(60, "mm")
         )
 
         csm.assign_data(spatial_data_geo_full, "workpiece geometry", "workpiece")
-        csm.assign_data(
-            spatial_data_geo_reduced, "workpiece geometry (reduced)", "workpiece"
-        )
+        csm.assign_data(spatial_data_geo_reduced, "workpiece geometry (reduced)", "workpiece")
 
         with tabs["CSM-Subsystems"]:
             csm.plot_graph()
@@ -284,9 +275,7 @@ def _welding_wire_geo_data(radius, length, cross_section_resolution=8):
         triangles[-1][1] = 1
         triangles[-1][2] = 0
 
-        return SpatialData(
-            Q_(points, "mm").astype("float32"), np.array(triangles, dtype="uint32")
-        )
+        return SpatialData(Q_(points, "mm").astype("float32"), np.array(triangles, dtype="uint32"))
 
     @staticmethod
     def _create_geometry(groove, seam_length, width):
diff --git a/weldx_widgets/widget_factory.py b/weldx_widgets/widget_factory.py
index 3e2e8be..b148bb4 100644
--- a/weldx_widgets/widget_factory.py
+++ b/weldx_widgets/widget_factory.py
@@ -66,9 +66,7 @@ class WidgetFloatWithUnit(WidgetMyHBox):
 
     def __init__(self, text, unit, value: float = 0.0, min=0):
         self._label = Label(text, layout=description_layout)
-        self._float = BoundedFloatText(
-            value=value, min=min, max=2**32, layout=textbox_layout
-        )
+        self._float = BoundedFloatText(value=value, min=min, max=2**32, layout=textbox_layout)
         self._unit = Text(value=unit, placeholder="unit", layout=textbox_layout)
 
         super().__init__(
diff --git a/weldx_widgets/widget_gas.py b/weldx_widgets/widget_gas.py
index 0b69b09..9e52075 100644
--- a/weldx_widgets/widget_gas.py
+++ b/weldx_widgets/widget_gas.py
@@ -30,11 +30,7 @@ def __init__(self, index=0, percentage=100):
         self.initial_percentage = percentage
         self.components = {self.gas_list[index]: gas}
 
-        self.out = Output(
-            layout=Layout(
-                width="auto", height="80px", display="none", border="2px solid"
-            )
-        )
+        self.out = Output(layout=Layout(width="auto", height="80px", display="none", border="2px solid"))
 
         button_add = Button(description="Add gas component")
         button_add.on_click(self._add_gas_comp)
@@ -58,9 +54,7 @@ def _create_gas_dropdown(self, index=0, percentage=100):
             style={"description_width": "initial"},
         )
 
-        percentage = IntSlider(
-            start=0, end=100, value=percentage, description="percentage"
-        )
+        percentage = IntSlider(start=0, end=100, value=percentage, description="percentage")
         percentage.observe(self._check, type="change")
 
         self.gas_selection = gas_dropdown
@@ -109,9 +103,7 @@ def _check(self, value):
 
     def to_tree(self) -> dict:
         gas_components = [
-            GasComponent(
-                self._mapping[element], Q_(int(widget.children[1].value), "percent")
-            )
+            GasComponent(self._mapping[element], Q_(int(widget.children[1].value), "percent"))
             for element, widget in self.components.items()
         ]
         return dict(gas_component=gas_components)
@@ -149,9 +141,7 @@ def to_tree(self) -> dict:
         """Return weldx objects describing the shielding gas."""
         gas_for_proc = ShieldingGasForProcedure(
             use_torch_shielding_gas=True,
-            torch_shielding_gas=ShieldingGasType(
-                **self.gas_components.to_tree(), common_name="SG"
-            ),
+            torch_shielding_gas=ShieldingGasType(**self.gas_components.to_tree(), common_name="SG"),
             torch_shielding_gas_flowrate=self.flowrate.quantity,
         )
         return dict(shielding_gas=gas_for_proc)
@@ -160,7 +150,5 @@ def from_tree(self, tree):
         """Restore widget state from tree."""
         gas_for_proc: ShieldingGasForProcedure = tree["shielding_gas"]
         self.flowrate.quantity = gas_for_proc.torch_shielding_gas_flowrate
-        gas_components = dict(
-            gas_component=gas_for_proc.torch_shielding_gas.gas_component
-        )
+        gas_components = dict(gas_component=gas_for_proc.torch_shielding_gas.gas_component)
         self.gas_components.from_tree(gas_components)
diff --git a/weldx_widgets/widget_gmaw.py b/weldx_widgets/widget_gmaw.py
index 07e9af1..9a41d6b 100644
--- a/weldx_widgets/widget_gmaw.py
+++ b/weldx_widgets/widget_gmaw.py
@@ -61,9 +61,7 @@ def __init__(self, tag: str, meta=None):
 
         self.manufacturer = WidgetLabeledTextInput("Manufacturer", "Fronius")
         self.power_source = WidgetLabeledTextInput("Power source", "TPS 500i")
-        self.wire_feedrate = WidgetFloatWithUnit(
-            text="Wire feed rate", value=10, min=0, unit="m/min"
-        )
+        self.wire_feedrate = WidgetFloatWithUnit(text="Wire feed rate", value=10, min=0, unit="m/min")
         children = [
             self.manufacturer,
             self.power_source,
@@ -88,9 +86,7 @@ def from_tree(self, tree):
         process: GmawProcess = tree["welding_process"]
         self.manufacturer.text_value = process.manufacturer
         self.power_source.text_value = process.power_source
-        self.wire_feedrate.quantity = from_scalar_timeseries_to_q(
-            process.parameters["wire_feedrate"]
-        )
+        self.wire_feedrate.quantity = from_scalar_timeseries_to_q(process.parameters["wire_feedrate"])
         self.tag = process.tag
         self.meta = process.meta
 
@@ -99,12 +95,8 @@ class ProcessPulsed(WidgetMyVBox):
     """Widget for pulsed processes."""
 
     def __init__(self, kind="UI"):
-        self.pulse_duration = WidgetFloatWithUnit(
-            "Pulse duration", value=5.0, unit="ms"
-        )
-        self.pulse_frequency = WidgetFloatWithUnit(
-            "Pulse frequency", value=100.0, unit="Hz"
-        )
+        self.pulse_duration = WidgetFloatWithUnit("Pulse duration", value=5.0, unit="ms")
+        self.pulse_frequency = WidgetFloatWithUnit("Pulse frequency", value=100.0, unit="Hz")
         self.base_current = WidgetFloatWithUnit("Base current", value=60.0, unit="A")
 
         if kind == "UI":
@@ -158,22 +150,14 @@ def from_tree(self, tree):
         self.kind = process.meta["modulation"]
 
         params = process.parameters
-        self.pulse_duration.quantity = from_scalar_timeseries_to_q(
-            params["pulse_duration"]
-        )
-        self.pulse_frequency.quantity = from_scalar_timeseries_to_q(
-            params["pulse_frequency"]
-        )
+        self.pulse_duration.quantity = from_scalar_timeseries_to_q(params["pulse_duration"])
+        self.pulse_frequency.quantity = from_scalar_timeseries_to_q(params["pulse_frequency"])
         self.base_current.quantity = from_scalar_timeseries_to_q(params["base_current"])
 
         if self.kind == "UI":
-            self.pulsed_dim.quantity = from_scalar_timeseries_to_q(
-                params["pulse_voltage"]
-            )
+            self.pulsed_dim.quantity = from_scalar_timeseries_to_q(params["pulse_voltage"])
         else:
-            self.pulsed_dim.quantity = from_scalar_timeseries_to_q(
-                params["pulse_current"]
-            )
+            self.pulsed_dim.quantity = from_scalar_timeseries_to_q(params["pulse_current"])
 
 
 class ProcessSpray(WidgetMyVBox):
@@ -181,9 +165,7 @@ class ProcessSpray(WidgetMyVBox):
 
     def __init__(self):
         self.base_process = BaseProcess("CLOOS/spray_arc")
-        self.voltage = WidgetTimeSeries(
-            base_data="40.0, 20.0", base_unit="V", time_data="0.0, 10.0", time_unit="s"
-        )
+        self.voltage = WidgetTimeSeries(base_data="40.0, 20.0", base_unit="V", time_data="0.0, 10.0", time_unit="s")
         self.impedance = WidgetFloatWithUnit(text="Impedance", value=10, unit="percent")
         self.characteristic = WidgetFloatWithUnit("Characteristic", value=5, unit="V/A")
 
@@ -221,9 +203,7 @@ def from_tree(self, tree):
         self.voltage.from_tree(dict(timeseries=parameters["voltage"]))
 
         self.impedance.quantity = from_scalar_timeseries_to_q(parameters["impedance"])
-        self.characteristic.quantity = from_scalar_timeseries_to_q(
-            parameters["characteristic"]
-        )
+        self.characteristic.quantity = from_scalar_timeseries_to_q(parameters["characteristic"])
 
 
 class WidgetWire(WidgetMyVBox):
@@ -334,9 +314,7 @@ def from_tree(self, tree: dict):
         elif welding_process.base_process == "spray":
             process_type = "Spray"
         else:
-            raise NotImplementedError(
-                f"unknown process type: {welding_process.base_process}"
-            )
+            raise NotImplementedError(f"unknown process type: {welding_process.base_process}")
         self.process_type.value = process_type
 
         self.welding_process.from_tree(process)
diff --git a/weldx_widgets/widget_groove_sel.py b/weldx_widgets/widget_groove_sel.py
index 03cd3aa..ddeab88 100644
--- a/weldx_widgets/widget_groove_sel.py
+++ b/weldx_widgets/widget_groove_sel.py
@@ -251,9 +251,7 @@ def groove_obj(self) -> IsoBaseGroove:
     def groove_obj(self, value: IsoBaseGroove):
         self._groove_obj = value
 
-        self.groove_selection.children[0].value = _groove_type_to_name[
-            self.groove_obj.__class__
-        ]
+        self.groove_selection.children[0].value = _groove_type_to_name[self.groove_obj.__class__]
         # update fields according to data in new groove object.
         gui_params = self.groove_params_dropdowns
 
@@ -298,11 +296,7 @@ def _create_plot(self):
 
     def _create_groove_dropdown(self):
         # get all attribute mappings (human-readable names)
-        attrs = {
-            attr
-            for groove in _groove_name_to_type
-            for attr in _groove_name_to_type[groove]._mapping.values()
-        }
+        attrs = {attr for groove in _groove_name_to_type for attr in _groove_name_to_type[groove]._mapping.values()}
 
         # create dict with hboxes of all attributes
         self.groove_params_dropdowns = dict()
@@ -313,9 +307,7 @@ def _create_groove_dropdown(self):
                     options=get_ff_grove_code_numbers(),
                     layout=description_layout,
                 )
-                param_widgets[item] = HBox(
-                    [Label("Code number", layout=description_layout), dropdown]
-                )
+                param_widgets[item] = HBox([Label("Code number", layout=description_layout), dropdown])
             else:
                 # replace underscores with spaces, first letter uppercase, translate.
                 t = f"{(item[0].upper() + item[1:]).replace('_', ' ')}"
@@ -327,17 +319,11 @@ def _create_groove_dropdown(self):
                 else:
                     text = t
                 if "angle" in item:
-                    param_widgets[item] = WidgetFloatWithUnit(
-                        text=text, unit="°", value=45
-                    )
+                    param_widgets[item] = WidgetFloatWithUnit(text=text, unit="°", value=45)
                 elif "workpiece_thickness" in item:
-                    param_widgets[item] = WidgetFloatWithUnit(
-                        text=text, unit="mm", value=15
-                    )
+                    param_widgets[item] = WidgetFloatWithUnit(text=text, unit="mm", value=15)
                 else:
-                    param_widgets[item] = WidgetFloatWithUnit(
-                        text=text, unit="mm", value=5
-                    )
+                    param_widgets[item] = WidgetFloatWithUnit(text=text, unit="mm", value=5)
             param_widgets[item].mapping = item
 
         groove_list = list(_groove_name_to_type.keys())
@@ -397,11 +383,7 @@ def _update_params_to_selection(self, change):
         self.groove_params.children = [
             slider
             for key, slider in self.groove_params_dropdowns.items()
-            if key
-            in (
-                _groove_name_to_type[selection]._mapping[x]
-                for x in _groove_name_to_type[selection]._mapping
-            )
+            if key in (_groove_name_to_type[selection]._mapping[x] for x in _groove_name_to_type[selection]._mapping)
         ]
 
 
@@ -412,9 +394,7 @@ def __init__(self):
         self.last_plot: Optional[CoordinateSystemManagerVisualizerK3D] = None
         self.groove_sel = WidgetGrooveSelection()
 
-        self.seam_length = WidgetFloatWithUnit(
-            "Seam length", value=300, min=0, unit="mm"
-        )
+        self.seam_length = WidgetFloatWithUnit("Seam length", value=300, min=0, unit="mm")
         self.seam_length.observe_float_value(self.create_csm_and_plot)
         self.seam_length.observe_unit(self.create_csm_and_plot)
 
@@ -442,9 +422,7 @@ def __init__(self):
         self.groove_sel.output_tabs.set_title(1, "3D profile")
         self.groove_sel.output_tabs.set_title(2, "CAD export")
 
-        self.groove_sel.output_tabs.observe(
-            self.create_csm_and_plot, names="selected_index"
-        )
+        self.groove_sel.output_tabs.observe(self.create_csm_and_plot, names="selected_index")
         self.groove_sel.add_parameter_observer(self.create_csm_and_plot)
 
         # csm 3d visualization
@@ -470,18 +448,14 @@ def create_csm_and_plot(self, change=None, plot=True, **kwargs):
         trace = weldx.Trace(trace_segment)
 
         # create 3d workpiece geometry from the groove profile and trace objects
-        geometry = weldx.Geometry(
-            self.groove_sel.groove_obj.to_profile(width_default=Q_(5, "mm")), trace
-        )
+        geometry = weldx.Geometry(self.groove_sel.groove_obj.to_profile(width_default=Q_(5, "mm")), trace)
 
         # rasterize geometry
         profile_raster_width = self.geometry_export.profile_raster_width.quantity
         trace_raster_width = self.geometry_export.trace_raster_width.quantity
 
         # crete a new coordinate system manager with default base coordinate system
-        csm = weldx.CoordinateSystemManager(
-            "base", coordinate_system_manager_name="design"
-        )
+        csm = weldx.CoordinateSystemManager("base", coordinate_system_manager_name="design")
 
         # add the workpiece coordinate system
         csm.add_cs(
@@ -516,9 +490,7 @@ def create_csm_and_plot(self, change=None, plot=True, **kwargs):
 
         coords = np.stack([tcp_start_point, tcp_end_point])
 
-        tcp_wire = weldx.LocalCoordinateSystem(
-            coordinates=coords, orientation=rot, time=[t_start, t_end]
-        )
+        tcp_wire = weldx.LocalCoordinateSystem(coordinates=coords, orientation=rot, time=[t_start, t_end])
 
         csm.add_cs(
             coordinate_system_name="TCP design",
diff --git a/weldx_widgets/widget_measurement.py b/weldx_widgets/widget_measurement.py
index 019ddea..b2d7cd9 100644
--- a/weldx_widgets/widget_measurement.py
+++ b/weldx_widgets/widget_measurement.py
@@ -83,9 +83,7 @@ class WidgetMeasurementChain(WidgetSimpleOutput):
     def __init__(self, measurements, out=None):
         super().__init__(out=out)
         with self:
-            fig, ax = plt.subplots(
-                nrows=len(measurements), figsize=(_DEFAULT_FIGWIDTH, 18)
-            )
+            fig, ax = plt.subplots(nrows=len(measurements), figsize=(_DEFAULT_FIGWIDTH, 18))
             for i, measurement in enumerate(measurements):
                 measurement.measurement_chain.plot(ax[i])
             plt.tight_layout()