diff --git a/sdrbase/gui/colormapper.cpp b/sdrbase/gui/colormapper.cpp
index 5edd9cd86..1affb8873 100644
--- a/sdrbase/gui/colormapper.cpp
+++ b/sdrbase/gui/colormapper.cpp
@@ -25,6 +25,8 @@ ColorMapper::ColorMapper(Theme theme) :
 		m_highlightColor = QColor(0xff, 0xd9, 0xab, 0x80);
 		m_boundaryColor = QColor(0x21, 0x1c, 0x16);
 		m_boundaryAlphaColor = QColor(0x00, 0x00, 0x00, 0x20);
+		m_lightBorderColor = QColor(80, 80, 80);
+        m_darkBorderColor = QColor(0, 0, 0);
 		break;
 	case ReverseGold:
 		/*
@@ -48,6 +50,8 @@ ColorMapper::ColorMapper(Theme theme) :
 		m_highlightColor = QColor(0xbf, 0x69, 0x00, 0x80);      // 75% saturation
 		m_boundaryColor = QColor(0x66, 0x38, 0x20);             // 69% saturation 40% brightness
 		m_boundaryAlphaColor = QColor(0xff, 0x8b, 0x00, 0x20);  // Base with alpha
+        m_lightBorderColor = QColor(80, 80, 80);
+        m_darkBorderColor = QColor(0, 0, 0);
 		break;
     case ReverseGreenEmerald:
         m_dialBackgroundcolorMap.push_back(std::pair<float, QColor>(0.0, QColor(0x00, 0x96, 0x26))); // 59% brightness
@@ -62,6 +66,8 @@ ColorMapper::ColorMapper(Theme theme) :
         m_highlightColor = QColor(0x40, 0xff, 0x70, 0x80);      // 75% saturation
         m_boundaryColor = QColor(0x20, 0x66, 0x31);             // 69% saturation 40% brightness
         m_boundaryAlphaColor = QColor(0x80, 0xff, 0x40, 0x20);  // Base with alpha
+        m_lightBorderColor = QColor(80, 80, 80);
+        m_darkBorderColor = QColor(0, 0, 0);
         break;
     case ReverseGreen:
         m_dialBackgroundcolorMap.push_back(std::pair<float, QColor>(0.0, QColor(0x00, 0x96, 0x00))); // 59% brightness
@@ -76,6 +82,8 @@ ColorMapper::ColorMapper(Theme theme) :
         m_highlightColor = QColor(0x40, 0xff, 0x40, 0x80);      // 75% saturation
         m_boundaryColor = QColor(0x20, 0x66, 0x20);             // 69% saturation 40% brightness
         m_boundaryAlphaColor = QColor(0x00, 0xff, 0x00, 0x20);  // Base with alpha
+        m_lightBorderColor = QColor(80, 80, 80);
+        m_darkBorderColor = QColor(0, 0, 0);
         break;
     case ReverseGreenApple:
         m_dialBackgroundcolorMap.push_back(std::pair<float, QColor>(0.0, QColor(0x26, 0x96, 0x00))); // 59% brightness
@@ -90,6 +98,8 @@ ColorMapper::ColorMapper(Theme theme) :
         m_highlightColor = QColor(0x70, 0xff, 0x40, 0x80);      // 75% saturation
         m_boundaryColor = QColor(0x31, 0x66, 0x20);             // 69% saturation 40% brightness
         m_boundaryAlphaColor = QColor(0x40, 0xff, 0x00, 0x20);  // Base with alpha
+        m_lightBorderColor = QColor(80, 80, 80);
+        m_darkBorderColor = QColor(0, 0, 0);
         break;
     case ReverseGreenYellow:
         m_dialBackgroundcolorMap.push_back(std::pair<float, QColor>(0.0, QColor(0x53, 0x96, 0x00))); // 59% brightness
@@ -104,34 +114,40 @@ ColorMapper::ColorMapper(Theme theme) :
         m_highlightColor = QColor(0xa9, 0xff, 0x40, 0x80);      // 75% saturation
         m_boundaryColor = QColor(0x46, 0x66, 0x20);             // 69% saturation 40% brightness
         m_boundaryAlphaColor = QColor(0x8c, 0xff, 0x00, 0x20);  // Base with alpha
+        m_lightBorderColor = QColor(80, 80, 80);
+        m_darkBorderColor = QColor(0, 0, 0);
         break;
-    case GrayGreenYellow: // Base 87 (=120-33) degrees hue 140,255,0
-        m_dialBackgroundcolorMap.push_back(std::pair<float, QColor>(0.0, QColor(33, 33, 33))); // 59% darkness
-        m_dialBackgroundcolorMap.push_back(std::pair<float, QColor>(0.1, QColor(50, 50, 50))); // 37% darkness
-        m_dialBackgroundcolorMap.push_back(std::pair<float, QColor>(0.2, QColor(67, 67, 67))); // 18% darkness
-        m_dialBackgroundcolorMap.push_back(std::pair<float, QColor>(0.5, QColor(80, 80, 80))); //  0% darkness
-        m_dialBackgroundcolorMap.push_back(std::pair<float, QColor>(0.8, QColor(60, 60, 60))); // 25% darkness
-        m_dialBackgroundcolorMap.push_back(std::pair<float, QColor>(0.9, QColor(50, 50, 50))); // 37% darkness
-        m_dialBackgroundcolorMap.push_back(std::pair<float, QColor>(1.0, QColor(33, 33, 33))); // 59% darkness
+    case GrayGreenYellow: // Base 87 (=120-33) degrees hue 140,255,0 - background 67, 67, 67
+        m_dialBackgroundcolorMap.push_back(std::pair<float, QColor>(0.0, QColor(27, 27, 27))); // 59% darkness
+        m_dialBackgroundcolorMap.push_back(std::pair<float, QColor>(0.1, QColor(42, 42, 42))); // 37% darkness
+        m_dialBackgroundcolorMap.push_back(std::pair<float, QColor>(0.2, QColor(55, 55, 55))); // 18% darkness
+        m_dialBackgroundcolorMap.push_back(std::pair<float, QColor>(0.5, QColor(67, 67, 67))); //  0% darkness
+        m_dialBackgroundcolorMap.push_back(std::pair<float, QColor>(0.8, QColor(50, 50, 50))); // 25% darkness
+        m_dialBackgroundcolorMap.push_back(std::pair<float, QColor>(0.9, QColor(42, 42, 42))); // 37% darkness
+        m_dialBackgroundcolorMap.push_back(std::pair<float, QColor>(1.0, QColor(27, 27, 27))); // 59% darkness
         m_foregroundColor = QColor(99, 128, 64);                // 50% saturation 50% brightbess - shadow face color
         m_secondaryForegroundColor = QColor(198, 255, 128);     // 50% saturation - front face color
         m_highlightColor = QColor(169, 255, 64, 80);            // 75% saturation - digit highlight overlay
-        m_boundaryColor = QColor(32, 32, 32);                   // background 60% darkness - inter wheel gap
+        m_boundaryColor = QColor(27, 27, 27);                   // background 60% darkness - inter wheel gap
         m_boundaryAlphaColor = QColor(140, 255, 0, 32);         // Base with alpha - wheel edges
+        m_lightBorderColor = QColor(80, 80, 80);
+        m_darkBorderColor = QColor(0, 0, 0);
         break;
-    case GrayGold: // Base 33 degrees hue 255,139,0
-        m_dialBackgroundcolorMap.push_back(std::pair<float, QColor>(0.0, QColor(33, 33, 33))); // 59% darkness
-        m_dialBackgroundcolorMap.push_back(std::pair<float, QColor>(0.1, QColor(50, 50, 50))); // 37% darkness
-        m_dialBackgroundcolorMap.push_back(std::pair<float, QColor>(0.2, QColor(67, 67, 67))); // 18% darkness
-        m_dialBackgroundcolorMap.push_back(std::pair<float, QColor>(0.5, QColor(80, 80, 80))); //  0% darkness
-        m_dialBackgroundcolorMap.push_back(std::pair<float, QColor>(0.8, QColor(60, 60, 60))); // 25% darkness
-        m_dialBackgroundcolorMap.push_back(std::pair<float, QColor>(0.9, QColor(50, 50, 50))); // 37% darkness
-        m_dialBackgroundcolorMap.push_back(std::pair<float, QColor>(1.0, QColor(33, 33, 33))); // 59% darkness
+    case GrayGold: // Base 33 degrees hue 255,139,0 - background 67, 67, 67
+        m_dialBackgroundcolorMap.push_back(std::pair<float, QColor>(0.0, QColor(27, 27, 27))); // 59% darkness
+        m_dialBackgroundcolorMap.push_back(std::pair<float, QColor>(0.1, QColor(42, 42, 42))); // 37% darkness
+        m_dialBackgroundcolorMap.push_back(std::pair<float, QColor>(0.2, QColor(55, 55, 55))); // 18% darkness
+        m_dialBackgroundcolorMap.push_back(std::pair<float, QColor>(0.5, QColor(67, 67, 67))); //  0% darkness
+        m_dialBackgroundcolorMap.push_back(std::pair<float, QColor>(0.8, QColor(50, 50, 50))); // 25% darkness
+        m_dialBackgroundcolorMap.push_back(std::pair<float, QColor>(0.9, QColor(42, 42, 42))); // 37% darkness
+        m_dialBackgroundcolorMap.push_back(std::pair<float, QColor>(1.0, QColor(27, 27, 27))); // 59% darkness
         m_foregroundColor = QColor(128, 98, 64);                // 50% saturation 50% brightbess - shadow face color
         m_secondaryForegroundColor = QColor(255, 197, 128);     // 50% saturation - front face color
         m_highlightColor = QColor(255, 169, 64, 80);            // 75% saturation - digit highlight overlay
-        m_boundaryColor = QColor(32, 32, 32);                   // background 60% darkness - inter wheel gap
+        m_boundaryColor = QColor(27, 27, 27);                   // background 60% darkness - inter wheel gap
         m_boundaryAlphaColor = QColor(255, 139, 0, 32);         // Base with alpha - wheel edges
+        m_lightBorderColor = QColor(80, 80, 80);
+        m_darkBorderColor = QColor(0, 0, 0);
         break;
 	case Normal:
 	default:
@@ -147,6 +163,8 @@ ColorMapper::ColorMapper(Theme theme) :
 		m_highlightColor = QColor(0xff, 0x00, 0x00, 0x20);
 		m_boundaryColor = QColor(0x20, 0x20, 0x20);
 		m_boundaryAlphaColor = QColor(0x00, 0x00, 0x00, 0x20);
+        m_lightBorderColor = QColor(80, 80, 80);
+        m_darkBorderColor = QColor(0, 0, 0);
 	}
 }
 
diff --git a/sdrbase/gui/colormapper.h b/sdrbase/gui/colormapper.h
index e13dee659..60b85578d 100644
--- a/sdrbase/gui/colormapper.h
+++ b/sdrbase/gui/colormapper.h
@@ -38,6 +38,8 @@ public:
 	const QColor& getHighlightColor() const { return m_highlightColor; };
 	const QColor& getBoundaryColor() const { return m_boundaryColor; };
 	const QColor& getBoundaryAlphaColor() const { return m_boundaryAlphaColor; };
+    const QColor& getLightBorderColor() const { return m_lightBorderColor; };
+    const QColor& getDarkBorderColor() const { return m_darkBorderColor; };
 
 private:
 	Theme m_theme;
@@ -47,6 +49,8 @@ private:
 	QColor m_highlightColor;
 	QColor m_boundaryColor;
 	QColor m_boundaryAlphaColor;
+	QColor m_lightBorderColor;
+    QColor m_darkBorderColor;
 };
 
 #endif /* INCLUDE_GPL_GUI_COLORMAPPER_H_ */
diff --git a/sdrbase/gui/valuedial.cpp b/sdrbase/gui/valuedial.cpp
index 91223c864..c16f083fd 100644
--- a/sdrbase/gui/valuedial.cpp
+++ b/sdrbase/gui/valuedial.cpp
@@ -194,6 +194,14 @@ void ValueDial::paintEvent(QPaintEvent*)
 	painter.drawLine(1, 1, 1, height() - 1);
 	painter.drawLine(width() - 2, 1, width() - 2, height() - 1);
 
+	// dial borders
+	painter.setPen(m_colorMapper.getLightBorderColor());
+    painter.drawLine(0, height() - 1, width() - 1, height() - 1);
+    painter.drawLine(width() - 1, height() - 1, width() - 1, 0);
+    painter.setPen(m_colorMapper.getDarkBorderColor());
+    painter.drawLine(0, 0, width() - 1, 0);
+    painter.drawLine(0, height() - 1, 0, 0);
+
 	if(m_hightlightedDigit >= 0) {
 		painter.setPen(Qt::NoPen);
 		painter.setBrush(m_colorMapper.getHighlightColor());