fix graph and white background added

python_app/gui/preprocess_dialog.py

@@ -26,7 +26,7 @@ from PyQt6.QtWidgets import (
 import numpy as np
 import pyqtgraph as pg
 
-from python_app.gui.controllers.renderers.common import create_plot
+from python_app.gui.controllers.renderers.common import CAPTURED_TRACE_PEN, create_plot
 from python_app.models.gui_profile_schema import GuiPreprocessDialogStateModel
 from python_app.models.dataset_model import TraceData
 from python_app.orchestration.preprocess_assets import (
@@ -470,17 +470,9 @@ class PreprocessDialog(QDialog):
             assert self._amplitude_plot is not None
             assert self._phase_plot is not None
             self._amplitude_plot.clear()
-            self._amplitude_plot.plot(
-                trace.frequency_hz,
-                magnitude_db,
-                pen=pg.mkPen("#4cc9f0", width=1.8),
-            )
+            self._amplitude_plot.plot(trace.frequency_hz, magnitude_db, pen=CAPTURED_TRACE_PEN)
             self._phase_plot.clear()
-            self._phase_plot.plot(
-                trace.frequency_hz,
-                phase_deg,
-                pen=pg.mkPen("#f48c06", width=1.8),
-            )
+            self._phase_plot.plot(trace.frequency_hz, phase_deg, pen=CAPTURED_TRACE_PEN)
         elif self._preview_placeholder is not None:
             self._preview_placeholder.setText(
                 f"{title}\n"