diff --git a/src/emucore/FrameBuffer.cxx b/src/emucore/FrameBuffer.cxx
index fce9cdae4..91cabfe3e 100644
--- a/src/emucore/FrameBuffer.cxx
+++ b/src/emucore/FrameBuffer.cxx
@@ -1326,8 +1326,6 @@ void FrameBuffer::toggleGrabMouse()
     kColorInfo            TIA output position color
     kColorTitleBar        Title bar color
     kColorTitleText       Title text color
-    kColorTitleBarLo      Disabled title bar color
-    kColorTitleTextLo     Disabled title text color
 */
 UIPaletteArray FrameBuffer::ourStandardUIPalette = {
   { 0x686868, 0x000000, 0xa38c61, 0xdccfa5, 0x404040,           // base
@@ -1338,7 +1336,7 @@ UIPaletteArray FrameBuffer::ourStandardUIPalette = {
     0xac3410, 0xd55941,                                         // scrollbar
     0xc80000, 0xffff80, 0xc8c8ff, 0xc80000,                     // debugger
     0xac3410, 0xd55941, 0xdccfa5, 0xf0f0cf, 0xa38c61,           // slider
-    0xffffff, 0xac3410, 0xf0f0cf, 0x686868, 0xdccfa5            // other
+    0xffffff, 0xac3410, 0xf0f0cf                                // other
   }
 };
 
@@ -1351,7 +1349,7 @@ UIPaletteArray FrameBuffer::ourClassicUIPalette = {
     0x20a020, 0x00ff00,                                         // scrollbar
     0xc80000, 0x00ff00, 0xc8c8ff, 0xc80000,                     // debugger
     0x20a020, 0x00ff00, 0x404040, 0x686868, 0x404040,           // slider
-    0x00ff00, 0x20a020, 0x000000, 0x686868, 0x404040            // other
+    0x00ff00, 0x20a020, 0x000000                                // other
   }
 };
 
@@ -1364,7 +1362,7 @@ UIPaletteArray FrameBuffer::ourLightUIPalette = {
     0xc0c0c0, 0x808080,                                         // scrollbar
     0xffc0c0, 0x000000, 0xe00000, 0xc00000,                     // debugger
     0x333333, 0x0078d7, 0xc0c0c0, 0xffffff, 0xc0c0c0,           // slider 0xBDDEF9| 0xe1e1e1 | 0xffffff
-    0xffffff, 0x333333, 0xf0f0f0, 0x808080, 0xc0c0c0            // other
+    0xffffff, 0x333333, 0xf0f0f0                                // other
   }
 };
 
@@ -1377,6 +1375,6 @@ UIPaletteArray FrameBuffer::ourDarkUIPalette = {
     0x3c3c3c, 0x646464,                                         // scrollbar
     0x7f2020, 0xc0c0c0, 0xe00000, 0xc00000,                     // debugger
     0x989898, 0x0059a3, 0x3c3c3c, 0x000000, 0x3c3c3c,           // slider
-    0x000000, 0x989898, 0x202020, 0x646464, 0x3c3c3c            // other
+    0x000000, 0x989898, 0x202020                                // other
   }
 };
diff --git a/src/emucore/FrameBufferConstants.hxx b/src/emucore/FrameBufferConstants.hxx
index 134086a0a..7896fd04c 100644
--- a/src/emucore/FrameBufferConstants.hxx
+++ b/src/emucore/FrameBufferConstants.hxx
@@ -109,9 +109,7 @@ static constexpr ColorId
   kColorInfo = 287,
   kColorTitleBar = 288,
   kColorTitleText = 289,
-  kColorTitleBarLo = 290,
-  kColorTitleTextLo = 291,
-  kNumColors = 292,
+  kNumColors = 290,
   kNone = 0  // placeholder to represent default/no color
 ;
 
diff --git a/src/gui/Dialog.cxx b/src/gui/Dialog.cxx
index 215289771..a2b9c14e3 100644
--- a/src/gui/Dialog.cxx
+++ b/src/gui/Dialog.cxx
@@ -441,26 +441,19 @@ void Dialog::drawDialog()
   {
     //cerr << "*** draw dialog " << typeid(*this).name() << " ***" << endl;
 
-    // Dialog is still on top if e.g a ContextMenu is opened
-    _onTop = true/*parent().myDialogStack.top() == this*/
-      || (parent().myDialogStack.get(parent().myDialogStack.size() - 2) == this
-          && !parent().myDialogStack.top()->hasTitle());
-
-    cerr << "on top " << isOnTop() << endl;
     if(clearsBackground())
     {
       //    cerr << "Dialog::drawDialog(): w = " << _w << ", h = " << _h << " @ " << &s << endl << endl;
 
       if(hasBackground())
-        s.fillRect(_x, _y + _th, _w, _h - _th, _onTop ? kDlgColor : kBGColorLo);
+        s.fillRect(_x, _y + _th, _w, _h - _th, kDlgColor);
       else
         s.invalidateRect(_x, _y + _th, _w, _h - _th);
       if(_th)
       {
-        s.fillRect(_x, _y, _w, _th, _onTop ? kColorTitleBar : kColorTitleBarLo);
+        s.fillRect(_x, _y, _w, _th, kColorTitleBar);
         s.drawString(_font, _title, _x + _font.getMaxCharWidth() * 1.25, _y + _font.getFontHeight() / 6,
-                     _font.getStringWidth(_title),
-                     _onTop ? kColorTitleText : kColorTitleTextLo);
+                     _font.getStringWidth(_title), kColorTitleText);
       }
     }
     else {
@@ -468,7 +461,7 @@ void Dialog::drawDialog()
       cerr << "invalidate " << typeid(*this).name() << endl;
     }
     if(hasBorder()) // currently only used by Dialog itself
-      s.frameRect(_x, _y, _w, _h, _onTop ? kColor : kShadowColor);
+      s.frameRect(_x, _y, _w, _h, kColor);
 
     // Make all child widgets dirty
     Widget::setDirtyInChain(_firstWidget);
diff --git a/src/gui/Dialog.hxx b/src/gui/Dialog.hxx
index de81b4a1d..3966e5db9 100644
--- a/src/gui/Dialog.hxx
+++ b/src/gui/Dialog.hxx
@@ -54,7 +54,7 @@ class Dialog : public GuiObject
     void close();
 
     bool isVisible() const override { return _visible; }
-    bool isOnTop() const { return _onTop;  }
+    bool isOnTop() const { return true;  } // TODO: remove
 
     virtual void setPosition();
     virtual void drawDialog();
@@ -197,7 +197,6 @@ class Dialog : public GuiObject
     Widget* _cancelWidget{nullptr};
 
     bool    _visible{false};
-    bool    _onTop{true};
     bool    _processCancel{false};
     string  _title;
     int     _th{0};