diff --git a/bec_widgets/cli/client.py b/bec_widgets/cli/client.py
index 2974bce2..7df48c90 100644
--- a/bec_widgets/cli/client.py
+++ b/bec_widgets/cli/client.py
@@ -2196,7 +2196,7 @@ class MultiWaveform(RPCBase):
         """
 
     @rpc_call
-    def plot(self, monitor: "str", color_palette: "str | None" = "magma"):
+    def plot(self, monitor: "str", color_palette: "str | None" = "plasma"):
         """
         Create a plot for the given monitor.
         Args:
@@ -2966,7 +2966,7 @@ class ScatterWaveform(RPCBase):
         x_entry: "None | str" = None,
         y_entry: "None | str" = None,
         z_entry: "None | str" = None,
-        color_map: "str | None" = "magma",
+        color_map: "str | None" = "plasma",
         label: "str | None" = None,
         validate_bec: "bool" = True,
     ) -> "ScatterCurve":
diff --git a/bec_widgets/widgets/plots/image/image.py b/bec_widgets/widgets/plots/image/image.py
index 29a48c1a..384c6b26 100644
--- a/bec_widgets/widgets/plots/image/image.py
+++ b/bec_widgets/widgets/plots/image/image.py
@@ -27,7 +27,7 @@ logger = bec_logger.logger
 # noinspection PyDataclass
 class ImageConfig(ConnectionConfig):
     color_map: str = Field(
-        "magma", description="The colormap  of the figure widget.", validate_default=True
+        "plasma", description="The colormap  of the figure widget.", validate_default=True
     )
     color_bar: Literal["full", "simple"] | None = Field(
         None, description="The type of the color bar."
@@ -142,8 +142,8 @@ class Image(PlotBase):
         self.plot_item.addItem(self._main_image)
         self.scan_id = None
 
-        # Default Color map to magma
-        self.color_map = "magma"
+        # Default Color map to plasma
+        self.color_map = "plasma"
 
     ################################################################################
     # Widget Specific GUI interactions
diff --git a/bec_widgets/widgets/plots/image/image_item.py b/bec_widgets/widgets/plots/image/image_item.py
index 352a017d..8ead1599 100644
--- a/bec_widgets/widgets/plots/image/image_item.py
+++ b/bec_widgets/widgets/plots/image/image_item.py
@@ -24,7 +24,7 @@ class ImageItemConfig(ConnectionConfig):  # TODO review config
     monitor: str | None = Field(None, description="The name of the monitor.")
     monitor_type: Literal["1d", "2d", "auto"] = Field("auto", description="The type of monitor.")
     source: str | None = Field(None, description="The source of the curve.")
-    color_map: str | None = Field("magma", description="The color map of the image.")
+    color_map: str | None = Field("plasma", description="The color map of the image.")
     downsample: bool | None = Field(True, description="Whether to downsample the image.")
     opacity: float | None = Field(1.0, description="The opacity of the image.")
     v_range: tuple[float | int, float | int] | None = Field(
diff --git a/bec_widgets/widgets/plots/multi_waveform/multi_waveform.py b/bec_widgets/widgets/plots/multi_waveform/multi_waveform.py
index 0e03d9e4..d0c6f5cb 100644
--- a/bec_widgets/widgets/plots/multi_waveform/multi_waveform.py
+++ b/bec_widgets/widgets/plots/multi_waveform/multi_waveform.py
@@ -25,7 +25,7 @@ logger = bec_logger.logger
 
 class MultiWaveformConfig(ConnectionConfig):
     color_palette: str | None = Field(
-        "magma", description="The color palette of the figure widget.", validate_default=True
+        "plasma", description="The color palette of the figure widget.", validate_default=True
     )
     curve_limit: int | None = Field(
         200, description="The maximum number of curves to display on the plot."
@@ -308,7 +308,7 @@ class MultiWaveform(PlotBase):
     ################################################################################
 
     @SafeSlot(popup_error=True)
-    def plot(self, monitor: str, color_palette: str | None = "magma"):
+    def plot(self, monitor: str, color_palette: str | None = "plasma"):
         """
         Create a plot for the given monitor.
         Args:
diff --git a/bec_widgets/widgets/plots/multi_waveform/toolbar_bundles/monitor_selection.py b/bec_widgets/widgets/plots/multi_waveform/toolbar_bundles/monitor_selection.py
index 09d745c6..14198512 100644
--- a/bec_widgets/widgets/plots/multi_waveform/toolbar_bundles/monitor_selection.py
+++ b/bec_widgets/widgets/plots/multi_waveform/toolbar_bundles/monitor_selection.py
@@ -40,7 +40,7 @@ class MultiWaveformSelectionToolbarBundle(ToolbarBundle):
         self.add_action("monitor", WidgetAction(widget=self.monitor, adjust_size=False))
 
         # Colormap Selection
-        self.colormap_widget = BECColorMapWidget(cmap="magma", parent_id=self.target_widget.gui_id)
+        self.colormap_widget = BECColorMapWidget(cmap="plasma", parent_id=self.target_widget.gui_id)
         self.add_action("color_map", WidgetAction(widget=self.colormap_widget, adjust_size=False))
 
         # Connect slots, a device will be connected upon change of any combobox
diff --git a/bec_widgets/widgets/plots/scatter_waveform/scatter_curve.py b/bec_widgets/widgets/plots/scatter_waveform/scatter_curve.py
index da92ed9b..97884ca1 100644
--- a/bec_widgets/widgets/plots/scatter_waveform/scatter_curve.py
+++ b/bec_widgets/widgets/plots/scatter_waveform/scatter_curve.py
@@ -38,7 +38,7 @@ class ScatterCurveConfig(ConnectionConfig):
         "solid", description="The style of the pen of the curve."
     )
     color_map: str | None = Field(
-        "magma", description="The color palette of the figure widget.", validate_default=True
+        "plasma", description="The color palette of the figure widget.", validate_default=True
     )
     x_device: ScatterDeviceSignal | None = Field(
         None, description="The x device signal of the scatter waveform."
diff --git a/bec_widgets/widgets/plots/scatter_waveform/scatter_waveform.py b/bec_widgets/widgets/plots/scatter_waveform/scatter_waveform.py
index 45005792..75a303a8 100644
--- a/bec_widgets/widgets/plots/scatter_waveform/scatter_waveform.py
+++ b/bec_widgets/widgets/plots/scatter_waveform/scatter_waveform.py
@@ -30,7 +30,7 @@ logger = bec_logger.logger
 # noinspection PyDataclass
 class ScatterWaveformConfig(ConnectionConfig):
     color_map: str | None = Field(
-        "magma",
+        "plasma",
         description="The color map of the z scaling of scatter waveform.",
         validate_default=True,
     )
@@ -266,7 +266,7 @@ class ScatterWaveform(PlotBase):
         x_entry: None | str = None,
         y_entry: None | str = None,
         z_entry: None | str = None,
-        color_map: str | None = "magma",
+        color_map: str | None = "plasma",
         label: str | None = None,
         validate_bec: bool = True,
     ) -> ScatterCurve:
diff --git a/bec_widgets/widgets/plots/waveform/settings/curve_settings/curve_tree.py b/bec_widgets/widgets/plots/waveform/settings/curve_settings/curve_tree.py
index a2f96776..90e3f944 100644
--- a/bec_widgets/widgets/plots/waveform/settings/curve_settings/curve_tree.py
+++ b/bec_widgets/widgets/plots/waveform/settings/curve_settings/curve_tree.py
@@ -373,7 +373,7 @@ class CurveTree(BECWidget, QWidget):
         if self.waveform and hasattr(self.waveform, "color_palette"):
             self.color_palette = self.waveform.color_palette
         else:
-            self.color_palette = "magma"
+            self.color_palette = "plasma"
 
         self.get_bec_shortcuts()
 
@@ -413,7 +413,7 @@ class CurveTree(BECWidget, QWidget):
         self.toolbar.add_action("renormalize_colors", renorm_action, self)
         renorm_action.action.triggered.connect(lambda checked: self.renormalize_colors())
 
-        self.colormap_widget = BECColorMapWidget(cmap=self.color_palette or "magma")
+        self.colormap_widget = BECColorMapWidget(cmap=self.color_palette or "plasma")
         self.toolbar.addWidget(self.colormap_widget)
         self.colormap_widget.colormap_changed_signal.connect(self.handle_colormap_changed)
 
diff --git a/bec_widgets/widgets/plots/waveform/waveform.py b/bec_widgets/widgets/plots/waveform/waveform.py
index 8f7dee21..5c896ffc 100644
--- a/bec_widgets/widgets/plots/waveform/waveform.py
+++ b/bec_widgets/widgets/plots/waveform/waveform.py
@@ -30,7 +30,7 @@ logger = bec_logger.logger
 # noinspection PyDataclass
 class WaveformConfig(ConnectionConfig):
     color_palette: str | None = Field(
-        "magma", description="The color palette of the figure widget.", validate_default=True
+        "plasma", description="The color palette of the figure widget.", validate_default=True
     )
 
     model_config: dict = {"validate_assignment": True}
@@ -1748,12 +1748,10 @@ class Waveform(PlotBase):
         self.proxy_dap_request.cleanup()
         self.clear_all()
         if self.curve_settings_dialog is not None:
-            self.curve_settings_dialog.close()
-            self.curve_settings_dialog.deleteLater()
+            self.curve_settings_dialog.reject()
             self.curve_settings_dialog = None
         if self.dap_summary_dialog is not None:
-            self.dap_summary_dialog.close()
-            self.dap_summary_dialog.deleteLater()
+            self.dap_summary_dialog.reject()
             self.dap_summary_dialog = None
         super().cleanup()
 
diff --git a/bec_widgets/widgets/progress/ring_progress_bar/ring_progress_bar.py b/bec_widgets/widgets/progress/ring_progress_bar/ring_progress_bar.py
index 9fd9153b..e3db63f9 100644
--- a/bec_widgets/widgets/progress/ring_progress_bar/ring_progress_bar.py
+++ b/bec_widgets/widgets/progress/ring_progress_bar/ring_progress_bar.py
@@ -20,7 +20,7 @@ logger = bec_logger.logger
 
 class RingProgressBarConfig(ConnectionConfig):
     color_map: Optional[str] = Field(
-        "magma", description="Color scheme for the progress bars.", validate_default=True
+        "plasma", description="Color scheme for the progress bars.", validate_default=True
     )
     min_number_of_bars: int | None = Field(
         1, description="Minimum number of progress bars to display."
diff --git a/bec_widgets/widgets/utility/visual/colormap_widget/colormap_widget.py b/bec_widgets/widgets/utility/visual/colormap_widget/colormap_widget.py
index 47df2246..7ee2f688 100644
--- a/bec_widgets/widgets/utility/visual/colormap_widget/colormap_widget.py
+++ b/bec_widgets/widgets/utility/visual/colormap_widget/colormap_widget.py
@@ -12,7 +12,7 @@ class BECColorMapWidget(BECWidget, QWidget):
     PLUGIN = True
     RPC = False
 
-    def __init__(self, parent=None, cmap: str = "magma", **kwargs):
+    def __init__(self, parent=None, cmap: str = "plasma", **kwargs):
         super().__init__(parent=parent, **kwargs)
         # Create the ColorMapButton
         self.button = ColorMapButton()
diff --git a/tests/unit_tests/test_colormap_widget.py b/tests/unit_tests/test_colormap_widget.py
index 7cb2f6a3..959da969 100644
--- a/tests/unit_tests/test_colormap_widget.py
+++ b/tests/unit_tests/test_colormap_widget.py
@@ -16,10 +16,10 @@ def test_color_map_widget_init(color_map_widget):
     """Test that the widget initializes correctly."""
     assert color_map_widget is not None
     assert isinstance(color_map_widget, BECColorMapWidget)
-    assert color_map_widget.colormap == "magma"
+    assert color_map_widget.colormap == "plasma"
     assert isinstance(color_map_widget.button, ColorMapButton)
     # Check that the button has the correct initial colormap
-    assert color_map_widget.button.colorMap().name == "magma"
+    assert color_map_widget.button.colorMap().name == "plasma"
 
 
 def test_color_map_widget_set_valid_colormap(color_map_widget):
@@ -44,7 +44,7 @@ def test_color_map_widget_set_invalid_colormap(color_map_widget):
 
 def test_color_map_widget_signal_emitted(color_map_widget, qtbot):
     """Test that the signal is emitted when the colormap changes."""
-    new_cmap = "plasma"
+    new_cmap = "magma"
     with qtbot.waitSignal(color_map_widget.colormap_changed_signal, timeout=1000) as blocker:
         color_map_widget.colormap = new_cmap
     assert blocker.signal_triggered
@@ -58,7 +58,7 @@ def test_color_map_widget_signal_not_emitted_for_invalid_colormap(color_map_widg
     with qtbot.assertNotEmitted(color_map_widget.colormap_changed_signal):
         color_map_widget.colormap = invalid_cmap
     # The colormap should remain unchanged
-    assert color_map_widget.colormap == "magma"
+    assert color_map_widget.colormap == "plasma"
 
 
 def test_color_map_widget_resize(color_map_widget):
diff --git a/tests/unit_tests/test_curve_settings.py b/tests/unit_tests/test_curve_settings.py
index ff2f63d3..eb38fbb6 100644
--- a/tests/unit_tests/test_curve_settings.py
+++ b/tests/unit_tests/test_curve_settings.py
@@ -142,7 +142,7 @@ def curve_tree_fixture(qtbot, mocked_client_with_dap):
     Creates a CurveTree widget referencing a mocked or real Waveform.
     """
     wf = create_widget(qtbot, Waveform, client=mocked_client_with_dap)
-    wf.color_palette = "magma"
+    wf.color_palette = "plasma"
     curve_tree = create_widget(qtbot, CurveTree, parent=None, waveform=wf)
     return curve_tree, wf
 
@@ -154,7 +154,7 @@ def test_curve_tree_init(curve_tree_fixture):
     """
     curve_tree, wf = curve_tree_fixture
     assert curve_tree.waveform == wf
-    assert curve_tree.color_palette == "magma"
+    assert curve_tree.color_palette == "plasma"
     assert curve_tree.tree.columnCount() == 7
 
     assert "add" in curve_tree.toolbar.widgets
diff --git a/tests/unit_tests/test_image_view_next_gen.py b/tests/unit_tests/test_image_view_next_gen.py
index 68af7dab..9adf9485 100644
--- a/tests/unit_tests/test_image_view_next_gen.py
+++ b/tests/unit_tests/test_image_view_next_gen.py
@@ -13,7 +13,7 @@ from tests.unit_tests.conftest import create_widget
 
 def test_initialization_defaults(qtbot, mocked_client):
     bec_image_view = create_widget(qtbot, Image, client=mocked_client)
-    assert bec_image_view.color_map == "magma"
+    assert bec_image_view.color_map == "plasma"
     assert bec_image_view.autorange is True
     assert bec_image_view.autorange_mode == "mean"
     assert bec_image_view.config.lock_aspect_ratio is True
diff --git a/tests/unit_tests/test_multi_waveform_next_gen.py b/tests/unit_tests/test_multi_waveform_next_gen.py
index b5375bef..9ce768c9 100644
--- a/tests/unit_tests/test_multi_waveform_next_gen.py
+++ b/tests/unit_tests/test_multi_waveform_next_gen.py
@@ -25,7 +25,7 @@ def test_multiwaveform_initialization(qtbot, mocked_client):
     assert len(mw.plot_item.curves) == 0
     # Multiwaveform specific
     assert mw.monitor is None
-    assert mw.color_palette == "magma"
+    assert mw.color_palette == "plasma"
     assert mw.max_trace == 200
     assert mw.flush_buffer is False
     assert mw.highlight_last_curve is True
@@ -50,7 +50,7 @@ def test_multiwaveform_set_properties(qtbot, mocked_client):
     mw = create_widget(qtbot, MultiWaveform, client=mocked_client)
 
     # Default checks
-    assert mw.color_palette == "magma"
+    assert mw.color_palette == "plasma"
     assert mw.max_trace == 200
     assert mw.flush_buffer is False
     assert mw.highlight_last_curve is True
@@ -162,7 +162,7 @@ def test_multiwaveform_set_colormap(qtbot, mocked_client):
         mw.on_monitor_1d_update(msg_data, metadata={"scan_id": "scan_1"})
 
     # Default color_palette is "magma"
-    assert mw.color_palette == "magma"
+    assert mw.color_palette == "plasma"
     # Now change to a new colormap
     mw.color_palette = "viridis"
     assert mw.color_palette == "viridis"
diff --git a/tests/unit_tests/test_scatter_waveform.py b/tests/unit_tests/test_scatter_waveform.py
index 951a1a08..8476ebe5 100644
--- a/tests/unit_tests/test_scatter_waveform.py
+++ b/tests/unit_tests/test_scatter_waveform.py
@@ -40,7 +40,7 @@ def test_scatter_waveform_plot(qtbot, mocked_client):
 
 def test_scatter_waveform_color_map(qtbot, mocked_client):
     swf = create_widget(qtbot, ScatterWaveform, client=mocked_client)
-    assert swf.color_map == "magma"
+    assert swf.color_map == "plasma"
 
     swf.color_map = "plasma"
     assert swf.color_map == "plasma"
diff --git a/tests/unit_tests/test_waveform_next_gen.py b/tests/unit_tests/test_waveform_next_gen.py
index 2aa934d7..bc8e5316 100644
--- a/tests/unit_tests/test_waveform_next_gen.py
+++ b/tests/unit_tests/test_waveform_next_gen.py
@@ -180,8 +180,8 @@ def test_color_palette_update(qtbot, mocked_client):
     curve = wf.plot(x=[1, 2, 3], y=[4, 5, 6], label="test_curve")
     original_color = curve.config.color
     # Change to a different valid palette
-    wf.color_palette = "plasma"
-    assert wf.config.color_palette == "plasma"
+    wf.color_palette = "magma"
+    assert wf.config.color_palette == "magma"
     # After updating the palette, the curve's color should be re-generated.
     assert curve.config.color != original_color