diff --git a/src/ygt/freetypeFont.py b/src/ygt/freetypeFont.py
index a41b892..e8a3102 100644
--- a/src/ygt/freetypeFont.py
+++ b/src/ygt/freetypeFont.py
@@ -186,12 +186,6 @@ def _get_bitmap_metrics(self):
         r["advance"] = round(self.glyph_slot.advance.x / 64)
         return r
     
-    #def glyph_bit(self, x, y):
-    #    pitch = abs(self.glyph_slot.bitmap.pitch)
-    #    row = self.glyph_slot.bitmap.buffer[pitch * y::]
-    #    cValue = row[x >> 3]
-    #    return cValue & (128 >> (x & 7)) != 0
-    
     def monomap_to_array(self, bitmap):
         data = [0] * (bitmap.rows * bitmap.width)
         for y in range(bitmap.rows):
@@ -342,10 +336,8 @@ def _draw_char_mono(
             gdata["advance"] = self.advance = gdata["width"] + 4
         else:
             starting_xpos = xpos = (x + gdata["bitmap_left"]) + x_offset
-        qp = QPen(QColor("black"))
+        qp = QPen(QColor("white") if dark_theme else QColor("black"))
         qp.setWidth(1)
-        on_pixel = QColor("white") if dark_theme else QColor("black")
-        qp.setColor(QColor(on_pixel))
         painter.setPen(qp)
         bytestepper = 0
         for r in range(gdata["rows"]):
diff --git a/src/ygt/harfbuzzFont.py b/src/ygt/harfbuzzFont.py
index 871c310..7ca5ecb 100644
--- a/src/ygt/harfbuzzFont.py
+++ b/src/ygt/harfbuzzFont.py
@@ -1229,8 +1229,6 @@ def __init__(self, top_window, hb_font):
         self.feature_list = []
         for s in self.hb_font._sub_features:
             self.feature_list.append(harfbuzzFont.expanded_feature_name(s))
-        #for s in self.hb_font._pos_features:
-        #    self.feature_list.append(harfbuzzFont.expanded_feature_name(s))
         self.feature_list = sorted(self.feature_list)
         if len(self.feature_list):
             self.feature_box = QComboBox()
diff --git a/src/ygt/window.py b/src/ygt/window.py
index 015effa..6ad84b5 100755
--- a/src/ygt/window.py
+++ b/src/ygt/window.py
@@ -1315,20 +1315,31 @@ def open_recent(self) -> None:
     @pyqtSlot()
     def open_file(self) -> None:
         f: FileNameVar = QFileDialog.getOpenFileName(
-            self, "Open TrueType font or YAML file", "", "Files (*.ttf *.ufo *.yaml)"
+            self, "Open TrueType font, UFO, or YAML file", "", "Files (*.ttf *.ufo *.yaml)"
         )
         result = 1
         try:
-            os.chdir(os.path.split(f[0])[0])
-            result = self._open(f)
+            # We get an empty string if user clicked "Cancel." In that case, do nothing.
+            # If file does not exist, display error message and then do nothing.
+            if len(f[0]) > 0:
+                if os.path.exists(f[0]):
+                    os.chdir(os.path.split(f[0])[0])
+                    result = self._open(f)
+                else:
+                    emsg = "file " + f[0] + " does not exist."
+                    result = 0
+                    self.error_manager.new_message({"msg": emsg, "mode": "dialog"})
+            else:
+                result = 0
         except FileNotFoundError:
-            emsg = "Can't find file '" + str(f) + "'."
+            # emsg = "Can't find file '" + str(f[0]) + "'."
             if type(f) is tuple:
-                emsg += f[0]
+                fn = f[0]
             elif type(f) is str:
-                emsg += f
+                fn = f
             else:
-                emsg += str(f)
+                fn = str(f)
+            emsg = "Can't find file '" + fn + "'."
             self.error_manager.new_message({"msg": emsg, "mode": "console"})
         if result == 1:
             self.set_preferences()
@@ -1615,15 +1626,13 @@ def set_status_validity_msg(self, t: str) -> None:
     @pyqtSlot()
     def show_about_dialog(self) -> None:
         msg = QMessageBox(self)
+        msg.setStyleSheet("QLabel{min-width: 350px;}")
         msg.setWindowTitle("About YGT")
-        msg.setText("YGT " + ygt_version)
-        detailed_text = "TrueType Hint Editor.\n"
-        detailed_text += "Copyright © 2024 by Peter S. Baker.\n"
+        msg.setText("YGT TrueType Hint Editor v. " + ygt_version)
+        detailed_text =  "Copyright © 2024 by Peter S. Baker.\n"
         detailed_text += "Apache License, version 2.0. \n\n"
         detailed_text += "For further information, visit https://github.com/psb1558/ygt."
         msg.setDetailedText(detailed_text)
-        # Will need to mess with size hints and policies to do this.
-        # msg.resize(round(msg.width() * 2), round(msg.height() * 2))
         msg.setStandardButtons(QMessageBox.StandardButton.NoButton)
         msg.exec()
 
diff --git a/src/ygt/ygStems.py b/src/ygt/ygStems.py
index aafd25b..33c23f0 100644
--- a/src/ygt/ygStems.py
+++ b/src/ygt/ygStems.py
@@ -152,3 +152,9 @@ def get_color(self) -> str:
                 result = "whitedist"
         return result
 
+
+# class horizontalSegmentList:
+#     def __init__(self, c: List[ygPoint]):
+#         self.pt_list = []
+#         found_points = []
+#         for p in c:
\ No newline at end of file