diff --git a/autotag_metadata/app.py b/autotag_metadata/app.py
index 591f26e..0b03b02 100644
--- a/autotag_metadata/app.py
+++ b/autotag_metadata/app.py
@@ -196,10 +196,10 @@ def validate_yaml(self):
         # config.YamlLintConfig(content=yaml_config_str))
         yaml_error = linter.get_syntax_error(self.yamlText.toPlainText())
         if yaml_error is None:
-            self.yamlText.setStyleSheet("background-color: rgb(255, 255, 255);")
+            self.yamlText.setStyleSheet("background-color: rgb(144, 238, 144);")
             return True
         else:
-            self.yamlText.setStyleSheet("background-color: rgb(85, 85, 127);")
+            self.yamlText.setStyleSheet("background-color: rgb(255, 106, 106);")
             return False
 
     def act_on_yaml_change(self):
@@ -367,14 +367,14 @@ def enable_activate(self):
     def toggle_watch(self):
         """Toggle folder watching"""
         if self.btnActivate.isChecked():
-            self.ledFilePattern.setDisabled(True)
+            self.ledFilePatterns.setDisabled(True)
             if self.watch_directory:
                 # create new instance of watcher potential
-                if self.ledFilePattern.text() == "":
+                if self.ledFilePatterns.text() == "":
                     patterns = None
                 else:
                     patterns = [
-                        p.strip() for p in self.ledFilePattern.text().split(",")
+                        p.strip() for p in self.ledFilePatterns.text().split(",")
                     ]
                 self.file_monitor = FileMonitor(patterns=patterns)
                 self.thread = QtCore.QThread(self)
@@ -395,7 +395,7 @@ def toggle_watch(self):
         elif not self.btnActivate.isChecked():
             self.btnActivate.setText("Activate")
             self.file_monitor.observer.stop()
-            self.ledFilePattern.setEnabled(True)
+            self.ledFilePatterns.setEnabled(True)
             logger.info("stop watching %s", self.watch_directory)
 
     def file_created(self, msg):
diff --git a/autotag_metadata/ui/main_window.ui b/autotag_metadata/ui/main_window.ui
index a434c8a..b3d8191 100644
--- a/autotag_metadata/ui/main_window.ui
+++ b/autotag_metadata/ui/main_window.ui
@@ -18,12 +18,12 @@
     <item row="0" column="0">
      <layout class="QVBoxLayout" name="verticalLayout">
       <property name="sizeConstraint">
-       <enum>QLayout::SetNoConstraint</enum>
+       <enum>QLayout::SizeConstraint::SetNoConstraint</enum>
       </property>
       <item>
        <widget class="QTabWidget" name="tabWidget">
         <property name="tabShape">
-         <enum>QTabWidget::Rounded</enum>
+         <enum>QTabWidget::TabShape::Rounded</enum>
         </property>
         <property name="currentIndex">
          <number>0</number>
@@ -50,11 +50,10 @@
                <x>0</x>
                <y>0</y>
                <width>1122</width>
-               <height>519</height>
+               <height>501</height>
               </rect>
              </property>
-             <layout class="QVBoxLayout" name="verticalLayout_3">
-             </layout>
+             <layout class="QVBoxLayout" name="verticalLayout_3"/>
             </widget>
            </widget>
           </item>
@@ -80,7 +79,7 @@
              </size>
             </property>
             <property name="sizeAdjustPolicy">
-             <enum>QAbstractScrollArea::AdjustIgnored</enum>
+             <enum>QAbstractScrollArea::SizeAdjustPolicy::AdjustIgnored</enum>
             </property>
            </widget>
           </item>
@@ -97,7 +96,7 @@
          <number>6</number>
         </property>
         <property name="rightMargin">
-            <number>6</number>
+         <number>6</number>
         </property>
         <item>
          <widget class="QLabel" name="label">
@@ -116,18 +115,18 @@
          <widget class="QLineEdit" name="ledTemporaryLoc"/>
         </item>
         <item>
-          <widget class="QPushButton" name="btnUseTemporaryFile">
-           <property name="text">
-            <string>Use</string>
-           </property>
-           <property name="checkable">
-            <bool>true</bool>
-           </property>
-           <property name="checked">
-            <bool>false</bool>
-           </property>
-          </widget>
-         </item>
+         <widget class="QPushButton" name="btnUseTemporaryFile">
+          <property name="text">
+           <string>Use</string>
+          </property>
+          <property name="checkable">
+           <bool>true</bool>
+          </property>
+          <property name="checked">
+           <bool>false</bool>
+          </property>
+         </widget>
+        </item>
         <item>
          <widget class="QPushButton" name="btnSelectTemporaryFile">
           <property name="text">
@@ -140,10 +139,10 @@
       <item>
        <layout class="QHBoxLayout" name="horizontalLayout_4">
         <property name="leftMargin">
-          <number>6</number>
+         <number>6</number>
         </property>
         <property name="rightMargin">
-          <number>6</number>
+         <number>6</number>
         </property>
         <item>
          <widget class="QLabel" name="lblWatchedFolder">
@@ -154,6 +153,9 @@
         </item>
         <item>
          <widget class="QLineEdit" name="ledFolder">
+          <property name="toolTip">
+           <string>Valid folder name to watch</string>
+          </property>
           <property name="text">
            <string/>
           </property>
@@ -167,19 +169,22 @@
          </widget>
         </item>
         <item>
-          <widget class="QLabel" name="lblFilePattern">
-           <property name="text">
-            <string>File Pattern</string>
-           </property>
-          </widget>
-         </item>
-         <item>
-          <widget class="QLineEdit" name="ledFilePattern">
-           <property name="text">
-            <string/>
-           </property>
-          </widget>
-         </item>
+         <widget class="QLabel" name="lblFilePattern">
+          <property name="text">
+           <string>File Patterns</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QLineEdit" name="ledFilePatterns">
+          <property name="toolTip">
+           <string>Comma-separated list, example: *.csv,*.tsv</string>
+          </property>
+          <property name="text">
+           <string/>
+          </property>
+         </widget>
+        </item>
        </layout>
       </item>
       <item>
@@ -243,7 +248,7 @@
      <x>0</x>
      <y>0</y>
      <width>1166</width>
-     <height>22</height>
+     <height>23</height>
     </rect>
    </property>
    <widget class="QMenu" name="menuMain">