diff --git a/sdrgui/channel/channelgui.cpp b/sdrgui/channel/channelgui.cpp
index 69e70ad5f..106df5191 100644
--- a/sdrgui/channel/channelgui.cpp
+++ b/sdrgui/channel/channelgui.cpp
@@ -44,6 +44,10 @@ ChannelGUI::ChannelGUI(QWidget *parent) :
 {
     qDebug("ChannelGUI::ChannelGUI");
     setWindowFlags(windowFlags() | Qt::FramelessWindowHint);
+    setObjectName("ChannelGUI");
+    setStyleSheet(QString(tr("#ChannelGUI { border: 1px solid %1; background-color: %2; }")
+        .arg(palette().highlight().color().darker(115).name()))
+        .arg(palette().dark().color().darker(115).name()));
 
     m_indexLabel = new QLabel();
     m_indexLabel->setFixedSize(50, 16);
@@ -124,8 +128,8 @@ ChannelGUI::ChannelGUI(QWidget *parent) :
     m_statusLabel->setToolTip("Channel status");
 
     m_layouts = new QVBoxLayout();
-    m_layouts->setContentsMargins(m_resizer.m_gripSize, 4, m_resizer.m_gripSize, 4);
-    m_layouts->setSpacing(2);
+    m_layouts->setContentsMargins(m_resizer.m_gripSize, m_resizer.m_gripSize, m_resizer.m_gripSize, m_resizer.m_gripSize);
+    m_layouts->setSpacing(0);
 
     m_topLayout = new QHBoxLayout();
     m_topLayout->setContentsMargins(0, 0, 0, 0);
@@ -152,6 +156,7 @@ ChannelGUI::ChannelGUI(QWidget *parent) :
     m_bottomLayout->addWidget(m_statusLabel);
     m_sizeGripBottomRight = new QSizeGrip(this);
     m_sizeGripBottomRight->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
+    m_sizeGripBottomRight->setFixedHeight(20);
     // m_bottomLayout->addStretch(1);
     m_bottomLayout->addWidget(m_sizeGripBottomRight, 0, Qt::AlignBottom | Qt::AlignRight);
 
@@ -318,6 +323,7 @@ void ChannelGUI::shrinkWindow()
 {
     qDebug("ChannelGUI::shrinkWindow");
     adjustSize();
+    resize(width(), m_rollupContents->height() + getAdditionalHeight());
 }
 
 void ChannelGUI::setTitle(const QString& title)
diff --git a/sdrgui/channel/channelgui.h b/sdrgui/channel/channelgui.h
index 9e02236ef..79199dd33 100644
--- a/sdrgui/channel/channelgui.h
+++ b/sdrgui/channel/channelgui.h
@@ -95,7 +95,7 @@ protected:
     void mouseMoveEvent(QMouseEvent* event) override;
     void resetContextMenuType() { m_contextMenuType = ContextMenuNone; }
     void updateIndexLabel();
-    int getAdditionalHeight() const { return 29 + 26; }
+    int getAdditionalHeight() const { return 25 + 22; }
 
     DeviceType m_deviceType;
     int m_deviceSetIndex;
diff --git a/sdrgui/feature/featuregui.cpp b/sdrgui/feature/featuregui.cpp
index 764e8706b..7b732652f 100644
--- a/sdrgui/feature/featuregui.cpp
+++ b/sdrgui/feature/featuregui.cpp
@@ -39,6 +39,10 @@ FeatureGUI::FeatureGUI(QWidget *parent) :
 {
     qDebug("FeatureGUI::FeatureGUI");
     setWindowFlags(windowFlags() | Qt::FramelessWindowHint);
+    setObjectName("FeatureGUI");
+    setStyleSheet(QString(tr("#FeatureGUI { border: 1px solid %1; background-color: %2; }")
+        .arg(palette().highlight().color().darker(115).name()))
+        .arg(palette().dark().color().darker(115).name()));
 
     m_indexLabel = new QLabel();
     m_indexLabel->setFixedSize(40, 16);
@@ -90,8 +94,8 @@ FeatureGUI::FeatureGUI(QWidget *parent) :
     m_statusLabel->setToolTip("Feature status");
 
     m_layouts = new QVBoxLayout();
-    m_layouts->setContentsMargins(m_resizer.m_gripSize, 4, m_resizer.m_gripSize, 4);
-    m_layouts->setSpacing(2);
+    m_layouts->setContentsMargins(m_resizer.m_gripSize, m_resizer.m_gripSize, m_resizer.m_gripSize, m_resizer.m_gripSize);
+    m_layouts->setSpacing(0);
 
     m_topLayout = new QHBoxLayout();
     m_topLayout->setContentsMargins(0, 0, 0, 0);
@@ -112,6 +116,7 @@ FeatureGUI::FeatureGUI(QWidget *parent) :
     m_bottomLayout->addWidget(m_statusLabel);
     m_sizeGripBottomRight = new QSizeGrip(this);
     m_sizeGripBottomRight->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
+    m_sizeGripBottomRight->setFixedHeight(20);
     // m_bottomLayout->addStretch(1);
     m_bottomLayout->addWidget(m_sizeGripBottomRight, 0, Qt::AlignBottom | Qt::AlignRight);
 
@@ -256,6 +261,7 @@ void FeatureGUI::shrinkWindow()
 {
     qDebug("FeatureGUI::shrinkWindow");
     adjustSize();
+    resize(width(), m_rollupContents.height() + getAdditionalHeight());
 }
 
 void FeatureGUI::setTitle(const QString& title)
diff --git a/sdrgui/feature/featuregui.h b/sdrgui/feature/featuregui.h
index 0d8e5ae78..fbccad7b6 100644
--- a/sdrgui/feature/featuregui.h
+++ b/sdrgui/feature/featuregui.h
@@ -72,6 +72,7 @@ protected:
     void mouseReleaseEvent(QMouseEvent* event) override;
     void mouseMoveEvent(QMouseEvent* event) override;
     void resetContextMenuType() { m_contextMenuType = ContextMenuNone; }
+    int getAdditionalHeight() const { return 25 + 22; }
 
     int m_featureIndex;
     QString m_helpURL;
diff --git a/sdrgui/gui/framelesswindowresizer.h b/sdrgui/gui/framelesswindowresizer.h
index 931b36c63..7b2e106eb 100644
--- a/sdrgui/gui/framelesswindowresizer.h
+++ b/sdrgui/gui/framelesswindowresizer.h
@@ -54,7 +54,7 @@ public:
     void mouseMoveEvent(QMouseEvent* event);
     void leaveEvent(QEvent* event);
 
-    const int m_gripSize = 3;   // Size in pixels of the border of the window that can be clicked in to resize it
+    const int m_gripSize = 2;   // Size in pixels of the border of the window that can be clicked in to resize it
 
 protected:
     bool mouseOnTopBorder(QPoint pos) const;
diff --git a/sdrgui/gui/rollupcontents.cpp b/sdrgui/gui/rollupcontents.cpp
index cce640575..aa5c90b5e 100644
--- a/sdrgui/gui/rollupcontents.cpp
+++ b/sdrgui/gui/rollupcontents.cpp
@@ -92,22 +92,6 @@ void RollupContents::setHighlighted(bool highlighted)
     }
 }
 
-int RollupContents::getAdditionalHeiht()
-{
-    int pos = 0;
-
-    for (int i = 0; i < children().count(); ++i)
-    {
-        QWidget* r = qobject_cast<QWidget*>(children()[i]);
-
-        if (r && isRollupChild(r) && !r->isHidden()) {
-            pos += 5;
-        }
-    }
-
-    return pos;
-}
-
 bool RollupContents::hasExpandableWidgets()
 {
     for (int i = 0; i < children().count(); ++i)
@@ -218,7 +202,8 @@ int RollupContents::arrangeRollups()
 void RollupContents::paintEvent(QPaintEvent*)
 {
     QPainter p(this);
-    QColor frameColor = palette().highlight().color().darker(115);
+    QColor frameColor = palette().highlight().color().darker(125);
+    // QColor frameColor = Qt::black;
 
     // Eigenbau
     QFontMetrics fm(font());
@@ -237,9 +222,10 @@ void RollupContents::paintEvent(QPaintEvent*)
     p.setPen(m_highlighted ? Qt::white : frameColor);
     p.setBrush(palette().window());
     QRectF r(rect());
-    r.adjust(0.5, 0.5, -0.5, -0.5);
+    // r.adjust(0.5, 0.5, -0.5, -0.5);
     // p.drawRoundedRect(r, 3.0, 3.0, Qt::AbsoluteSize);
-    p.drawRect(r);
+    // p.drawRect(r);
+    p.fillRect(r, palette().window());
 
     // Rollups
     int pos = 2; // fm.height() + 4;
diff --git a/sdrgui/gui/rollupcontents.h b/sdrgui/gui/rollupcontents.h
index 2777b6f78..898505a59 100644
--- a/sdrgui/gui/rollupcontents.h
+++ b/sdrgui/gui/rollupcontents.h
@@ -34,7 +34,6 @@ public:
     void saveState(RollupState& state) const;
     void restoreState(const RollupState& state);
     int arrangeRollups();
-    int getAdditionalHeiht();
     bool hasExpandableWidgets();
 
 signals: