修改深色模式下结果图片显示异常

pqAutomationApp.py

@@ -6,6 +6,7 @@ import time
 import os
 import datetime
 import traceback
+import matplotlib
 import matplotlib.pyplot as plt
 from app_version import APP_NAME, APP_VERSION, get_app_title
 from drivers.UCD323_Function import UCDController
@@ -62,7 +63,6 @@ from app.runner.test_runner import TestRunnerMixin
 plt.rcParams["font.family"] = ["sans-serif"]
 plt.rcParams["font.sans-serif"] = ["Microsoft YaHei"]
 
-
 class PQAutomationApp(
     ConfigIOMixin,
     ChartFrameMixin,
@@ -431,6 +431,11 @@ class PQAutomationApp(
 
         # 更新测试项目和侧边栏
         self.update_test_items()
+        if hasattr(self, "refresh_connection_indicators"):
+            try:
+                self.refresh_connection_indicators()
+            except Exception:
+                pass
         self.update_sidebar_selection()
         self.on_test_type_change()
         self._switch_signal_format_tabs(test_type)