+ GlobalSettings settings;
+
+ if (key == GlobalSettings::Key_View_ColoredBG) {
+ colored_bg_ = settings.value(GlobalSettings::Key_View_ColoredBG).toBool();
+ viewport_->update();
+ }
+
+ if ((key == GlobalSettings::Key_View_ShowSamplingPoints) ||
+ (key == GlobalSettings::Key_View_ShowAnalogMinorGrid))
+ viewport_->update();
+