fix graph and white background added

python_app/gui/main.py

@@ -7,7 +7,6 @@ from pathlib import Path
 import signal
 import sys
 
-import pyqtgraph as pg
 from PyQt6.QtCore import QTimer
 from PyQt6.QtWidgets import QApplication
 
@@ -54,8 +53,6 @@ def main() -> int:
     """Run Qt event loop and show main radar control window."""
     app = QApplication(sys.argv)
     apply_light_theme(app)
-    # PyQtGraph foreground controls axis lines, tick text, labels, and titles.
-    pg.setConfigOptions(antialias=True, background="#ffffff", foreground="#ffffff")
     window = AppWindow(PROJECT_ROOT)
     if env_enabled("RADAR_SYSTEM_HEADLESS"):
         _install_unix_signal_handlers(app, window)