Reset monitor settings upon startup

AdaptiveBrightness/AdaptiveBrightness.ui

@@ -60,6 +60,9 @@
              <layout class="QGridLayout" name="gridLayout_9">
               <item row="1" column="1">
                <widget class="QSlider" name="monitorMaxBrightnessSlider">
+                <property name="value">
+                 <number>50</number>
+                </property>
                 <property name="orientation">
                  <enum>Qt::Horizontal</enum>
                 </property>
@@ -74,6 +77,9 @@
               </item>
               <item row="0" column="1">
                <widget class="QSlider" name="monitorMinBrightnessSlider">
+                <property name="value">
+                 <number>50</number>
+                </property>
                 <property name="orientation">
                  <enum>Qt::Horizontal</enum>
                 </property>
@@ -117,6 +123,9 @@
              <layout class="QGridLayout" name="gridLayout_2">
               <item row="0" column="0">
                <widget class="QSlider" name="monitorBrightnessSlider">
+                <property name="value">
+                 <number>50</number>
+                </property>
                 <property name="orientation">
                  <enum>Qt::Horizontal</enum>
                 </property>
@@ -160,6 +169,9 @@
            </item>
            <item row="0" column="1">
             <widget class="QSlider" name="monitorOverallMinBrightnessSlider">
+             <property name="value">
+              <number>50</number>
+             </property>
              <property name="orientation">
               <enum>Qt::Horizontal</enum>
              </property>
@@ -184,6 +196,9 @@
            </item>
            <item row="1" column="1">
             <widget class="QSlider" name="monitorOverallMaxBrightnessSlider">
+             <property name="value">
+              <number>50</number>
+             </property>
              <property name="orientation">
               <enum>Qt::Horizontal</enum>
              </property>
@@ -243,6 +258,9 @@
           <layout class="QGridLayout" name="gridLayout">
            <item row="0" column="0">
             <widget class="QSlider" name="monitorOverallBrightnessSlider">
+             <property name="value">
+              <number>50</number>
+             </property>
              <property name="orientation">
               <enum>Qt::Horizontal</enum>
              </property>

AdaptiveBrightness/main_window.cpp

@@ -124,6 +124,8 @@ void MainWindow::setupMonitorsTab()
 
     setupBrightness();
     setupOverallBrightness();
+
+    resetAllMonitorSettings();
 }
 
 void MainWindow::setupLimitsSlider()