diff --git a/src/Gui/Stylesheets/Dark-blue.qss b/src/Gui/Stylesheets/Dark-blue.qss
index bbb10ba78..5eef1ba6f 100644
--- a/src/Gui/Stylesheets/Dark-blue.qss
+++ b/src/Gui/Stylesheets/Dark-blue.qss
@@ -1,14 +1,14 @@
 /*
 ABOUT
 ============================================================================================================
-version 2.04
+version 2.05
 QT theme (stylesheet) specially developed for FreeCAD (http://www.freecadweb.org/).
 It might work with other software that uses QT styling.
 
 
 LICENSE
 ============================================================================================================
-Copyright (c) 2016 Pablo Gil Fernández
+Copyright (c) 2016 Pablo Gil Fernández
 
 This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.
 To view a copy of this license, visit http://creativecommons.org/licenses/by-sa/4.0/.
@@ -93,6 +93,7 @@ Main window
 ==================================================================================================*/
 QMainWindow,
 QDialog,
+QDockWidget,
 QToolBar  {
     background-color: #6e6e6e; /* main background color */
 }
@@ -158,6 +159,38 @@ QMenu::indicator:non-exclusive:checked {
     color: white;
 }
 
+/* Fix for elements inside a drop-down menu */
+QMenu QRadioButton,
+QMenu QCheckBox,
+QMenu QPushButton,
+QMenu QToolButton {
+    color: white; /* same as regular QRadioButton and QCheckBox */
+}
+
+QMenu QRadioButton:hover,
+QMenu QCheckBox:hover,
+QMenu QPushButton:hover,
+QMenu QToolButton:hover,
+QMenu QPushButton:pressed,
+QMenu QToolButton:pressed,
+QMenu QPushButton:selected,
+QMenu QToolButton:selected {
+    color: white;
+    background-color: #5e90fa; /* same as QMenu::item:selected and QMenu::item:pressed */
+}
+
+QMenu QRadioButton:disabled,
+QMenu QCheckBox:disabled {
+    color: #f5f5f5;
+}
+
+QMenu QRadioButton::indicator:disabled,
+QMenu QCheckBox::indicator:disabled {
+    color: #f5f5f5;
+    background-color: transparent;
+    border: 1px solid #f5f5f5;
+}
+
 
 /*==================================================================================================
 Tool bar
@@ -937,14 +970,6 @@ QSplitter::handle {
     padding: 0px;
 }
 
-QSplitter::handle:vertical {
-    background-image: url(qss:images/splitter_horizontal_dark.png);
-    background-position: center center;
-    background-repeat: none;
-    margin: 2px 4px 2px 4px;
-    height: 2px;
-}
-
 QSplitter::handle:horizontal {
     background-image: url(qss:images/splitter_vertical_dark.png);
     background-position: center center;
@@ -953,7 +978,15 @@ QSplitter::handle:horizontal {
     width: 2px;
 }
 
-/* Similar to the splitter is the following window separator: */
+QSplitter::handle:vertical {
+    background-image: url(qss:images/splitter_horizontal_dark.png);
+    background-position: center center;
+    background-repeat: none;
+    margin: 2px 4px 2px 4px;
+    height: 2px;
+}
+
+/* Similar to the splitter is the following window separator (but horizontal/vertical is on the opposite way) */
 QMainWindow::separator {
     background-position: center center;
     background-repeat: none;
@@ -1555,13 +1588,10 @@ QRadioButton::indicator:pressed {
     border-color: #adc5ed;
 }
 
-QRadioButton::indicator:disabled {
-    border: 1px solid #f5f5f5;
-}
-
 QRadioButton::indicator:disabled {
     color: #f5f5f5;
     background-color: transparent;
+    border: 1px solid #f5f5f5;
 }
 
 QRadioButton:focus {
@@ -1888,6 +1918,17 @@ QToolBar > QToolButton::menu-arrow:open {
     background-image: url(qss:images/down_arrow_lighter.png);
 }
 
+/* when QToolButton is checked: */
+QToolBar > QToolButton:checked {
+    border: 1px solid #7cabf9;
+    background-color: rgba(124,171,249,60); /* transparency for #7cabf9 color */
+}
+
+QToolBar > QToolButton:checked:hover {
+    border: 1px solid #7cabf9;
+    background-color: rgba(124,171,249,80); /* transparency for #7cabf9 color */
+}
+
 /*The "show more" button  (it can also be stylable with "QToolBarExtension" */
 QToolBar QToolButton#qt_toolbar_ext_button {
     margin: 0px;
diff --git a/src/Gui/Stylesheets/Dark-green.qss b/src/Gui/Stylesheets/Dark-green.qss
index db6b2ce8e..ed43b0978 100644
--- a/src/Gui/Stylesheets/Dark-green.qss
+++ b/src/Gui/Stylesheets/Dark-green.qss
@@ -1,14 +1,14 @@
 /*
 ABOUT
 ============================================================================================================
-version 2.04
+version 2.05
 QT theme (stylesheet) specially developed for FreeCAD (http://www.freecadweb.org/).
 It might work with other software that uses QT styling.
 
 
 LICENSE
 ============================================================================================================
-Copyright (c) 2016 Pablo Gil Fernández
+Copyright (c) 2016 Pablo Gil Fernández
 
 This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.
 To view a copy of this license, visit http://creativecommons.org/licenses/by-sa/4.0/.
@@ -93,6 +93,7 @@ Main window
 ==================================================================================================*/
 QMainWindow,
 QDialog,
+QDockWidget,
 QToolBar  {
     background-color: #6e6e6e; /* main background color */
 }
@@ -158,6 +159,38 @@ QMenu::indicator:non-exclusive:checked {
     color: white;
 }
 
+/* Fix for elements inside a drop-down menu */
+QMenu QRadioButton,
+QMenu QCheckBox,
+QMenu QPushButton,
+QMenu QToolButton {
+    color: white; /* same as regular QRadioButton and QCheckBox */
+}
+
+QMenu QRadioButton:hover,
+QMenu QCheckBox:hover,
+QMenu QPushButton:hover,
+QMenu QToolButton:hover,
+QMenu QPushButton:pressed,
+QMenu QToolButton:pressed,
+QMenu QPushButton:selected,
+QMenu QToolButton:selected {
+    color: white;
+    background-color: #94b30f; /* same as QMenu::item:selected and QMenu::item:pressed */
+}
+
+QMenu QRadioButton:disabled,
+QMenu QCheckBox:disabled {
+    color: #f5f5f5;
+}
+
+QMenu QRadioButton::indicator:disabled,
+QMenu QCheckBox::indicator:disabled {
+    color: #f5f5f5;
+    background-color: transparent;
+    border: 1px solid #f5f5f5;
+}
+
 
 /*==================================================================================================
 Tool bar
@@ -937,14 +970,6 @@ QSplitter::handle {
     padding: 0px;
 }
 
-QSplitter::handle:vertical {
-    background-image: url(qss:images/splitter_horizontal_dark.png);
-    background-position: center center;
-    background-repeat: none;
-    margin: 2px 4px 2px 4px;
-    height: 2px;
-}
-
 QSplitter::handle:horizontal {
     background-image: url(qss:images/splitter_vertical_dark.png);
     background-position: center center;
@@ -953,7 +978,15 @@ QSplitter::handle:horizontal {
     width: 2px;
 }
 
-/* Similar to the splitter is the following window separator: */
+QSplitter::handle:vertical {
+    background-image: url(qss:images/splitter_horizontal_dark.png);
+    background-position: center center;
+    background-repeat: none;
+    margin: 2px 4px 2px 4px;
+    height: 2px;
+}
+
+/* Similar to the splitter is the following window separator (but horizontal/vertical is on the opposite way) */
 QMainWindow::separator {
     background-position: center center;
     background-repeat: none;
@@ -1555,13 +1588,10 @@ QRadioButton::indicator:pressed {
     border-color: #c5d675;
 }
 
-QRadioButton::indicator:disabled {
-    border: 1px solid #f5f5f5;
-}
-
 QRadioButton::indicator:disabled {
     color: #f5f5f5;
     background-color: transparent;
+    border: 1px solid #f5f5f5;
 }
 
 QRadioButton:focus {
@@ -1888,6 +1918,17 @@ QToolBar > QToolButton::menu-arrow:open {
     background-image: url(qss:images/down_arrow_lighter.png);
 }
 
+/* when QToolButton is checked: */
+QToolBar > QToolButton:checked {
+    border: 1px solid #a5c61a;
+    background-color: rgba(124,171,249,60); /* transparency for #a5c61a color */
+}
+
+QToolBar > QToolButton:checked:hover {
+    border: 1px solid #a5c61a;
+    background-color: rgba(124,171,249,80); /* transparency for #a5c61a color */
+}
+
 /*The "show more" button  (it can also be stylable with "QToolBarExtension" */
 QToolBar QToolButton#qt_toolbar_ext_button {
     margin: 0px;
diff --git a/src/Gui/Stylesheets/Dark-orange.qss b/src/Gui/Stylesheets/Dark-orange.qss
index c4f1bcb87..af94aca98 100644
--- a/src/Gui/Stylesheets/Dark-orange.qss
+++ b/src/Gui/Stylesheets/Dark-orange.qss
@@ -1,14 +1,14 @@
 /*
 ABOUT
 ============================================================================================================
-version 2.04
+version 2.05
 QT theme (stylesheet) specially developed for FreeCAD (http://www.freecadweb.org/).
 It might work with other software that uses QT styling.
 
 
 LICENSE
 ============================================================================================================
-Copyright (c) 2016 Pablo Gil Fernández
+Copyright (c) 2016 Pablo Gil Fernández
 
 This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.
 To view a copy of this license, visit http://creativecommons.org/licenses/by-sa/4.0/.
@@ -93,6 +93,7 @@ Main window
 ==================================================================================================*/
 QMainWindow,
 QDialog,
+QDockWidget,
 QToolBar  {
     background-color: #6e6e6e; /* main background color */
 }
@@ -158,6 +159,38 @@ QMenu::indicator:non-exclusive:checked {
     color: white;
 }
 
+/* Fix for elements inside a drop-down menu */
+QMenu QRadioButton,
+QMenu QCheckBox,
+QMenu QPushButton,
+QMenu QToolButton {
+    color: white; /* same as regular QRadioButton and QCheckBox */
+}
+
+QMenu QRadioButton:hover,
+QMenu QCheckBox:hover,
+QMenu QPushButton:hover,
+QMenu QToolButton:hover,
+QMenu QPushButton:pressed,
+QMenu QToolButton:pressed,
+QMenu QPushButton:selected,
+QMenu QToolButton:selected {
+    color: white;
+    background-color: #daa116; /* same as QMenu::item:selected and QMenu::item:pressed */
+}
+
+QMenu QRadioButton:disabled,
+QMenu QCheckBox:disabled {
+    color: #f5f5f5;
+}
+
+QMenu QRadioButton::indicator:disabled,
+QMenu QCheckBox::indicator:disabled {
+    color: #f5f5f5;
+    background-color: transparent;
+    border: 1px solid #f5f5f5;
+}
+
 
 /*==================================================================================================
 Tool bar
@@ -937,14 +970,6 @@ QSplitter::handle {
     padding: 0px;
 }
 
-QSplitter::handle:vertical {
-    background-image: url(qss:images/splitter_horizontal_dark.png);
-    background-position: center center;
-    background-repeat: none;
-    margin: 2px 4px 2px 4px;
-    height: 2px;
-}
-
 QSplitter::handle:horizontal {
     background-image: url(qss:images/splitter_vertical_dark.png);
     background-position: center center;
@@ -953,7 +978,15 @@ QSplitter::handle:horizontal {
     width: 2px;
 }
 
-/* Similar to the splitter is the following window separator: */
+QSplitter::handle:vertical {
+    background-image: url(qss:images/splitter_horizontal_dark.png);
+    background-position: center center;
+    background-repeat: none;
+    margin: 2px 4px 2px 4px;
+    height: 2px;
+}
+
+/* Similar to the splitter is the following window separator (but horizontal/vertical is on the opposite way) */
 QMainWindow::separator {
     background-position: center center;
     background-repeat: none;
@@ -1555,13 +1588,10 @@ QRadioButton::indicator:pressed {
     border-color: #e0c992;
 }
 
-QRadioButton::indicator:disabled {
-    border: 1px solid #f5f5f5;
-}
-
 QRadioButton::indicator:disabled {
     color: #f5f5f5;
     background-color: transparent;
+    border: 1px solid #f5f5f5;
 }
 
 QRadioButton:focus {
@@ -1888,6 +1918,17 @@ QToolBar > QToolButton::menu-arrow:open {
     background-image: url(qss:images/down_arrow_lighter.png);
 }
 
+/* when QToolButton is checked: */
+QToolBar > QToolButton:checked {
+    border: 1px solid #e3b64d;
+    background-color: rgba(124,171,249,60); /* transparency for #e3b64d color */
+}
+
+QToolBar > QToolButton:checked:hover {
+    border: 1px solid #e3b64d;
+    background-color: rgba(124,171,249,80); /* transparency for #e3b64d color */
+}
+
 /*The "show more" button  (it can also be stylable with "QToolBarExtension" */
 QToolBar QToolButton#qt_toolbar_ext_button {
     margin: 0px;
diff --git a/src/Gui/Stylesheets/Light-blue.qss b/src/Gui/Stylesheets/Light-blue.qss
index 0a521796d..b1fa5145a 100644
--- a/src/Gui/Stylesheets/Light-blue.qss
+++ b/src/Gui/Stylesheets/Light-blue.qss
@@ -1,14 +1,14 @@
 /*
 ABOUT
 ============================================================================================================
-version 2.04
+version 2.05
 QT theme (stylesheet) specially developed for FreeCAD (http://www.freecadweb.org/).
 It might work with other software that uses QT styling.
 
 
 LICENSE
 ============================================================================================================
-Copyright (c) 2016 Pablo Gil Fernández
+Copyright (c) 2016 Pablo Gil Fernández
 
 This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.
 To view a copy of this license, visit http://creativecommons.org/licenses/by-sa/4.0/.
@@ -93,6 +93,7 @@ Main window
 ==================================================================================================*/
 QMainWindow,
 QDialog,
+QDockWidget,
 QToolBar  {
     background-color: #f5f5f5; /* main background color */
 }
@@ -158,6 +159,38 @@ QMenu::indicator:non-exclusive:checked {
     color: white;
 }
 
+/* Fix for elements inside a drop-down menu */
+QMenu QRadioButton,
+QMenu QCheckBox,
+QMenu QPushButton,
+QMenu QToolButton {
+    color: black; /* same as regular QRadioButton and QCheckBox */
+}
+
+QMenu QRadioButton:hover,
+QMenu QCheckBox:hover,
+QMenu QPushButton:hover,
+QMenu QToolButton:hover,
+QMenu QPushButton:pressed,
+QMenu QToolButton:pressed,
+QMenu QPushButton:selected,
+QMenu QToolButton:selected {
+    color: white;
+    background-color: #5e90fa; /* same as QMenu::item:selected and QMenu::item:pressed */
+}
+
+QMenu QRadioButton:disabled,
+QMenu QCheckBox:disabled {
+    color: #6e6e6e;
+}
+
+QMenu QRadioButton::indicator:disabled,
+QMenu QCheckBox::indicator:disabled {
+    color: #6e6e6e;
+    background-color: transparent;
+    border: 1px solid #6e6e6e;
+}
+
 
 /*==================================================================================================
 Tool bar
@@ -935,14 +968,6 @@ QSplitter::handle {
     padding: 0px;
 }
 
-QSplitter::handle:vertical {
-    background-image: url(qss:images/splitter_horizontal_dark.png);
-    background-position: center center;
-    background-repeat: none;
-    margin: 2px 4px 2px 4px;
-    height: 2px;
-}
-
 QSplitter::handle:horizontal {
     background-image: url(qss:images/splitter_vertical_dark.png);
     background-position: center center;
@@ -951,7 +976,15 @@ QSplitter::handle:horizontal {
     width: 2px;
 }
 
-/* Similar to the splitter is the following window separator: */
+QSplitter::handle:vertical {
+    background-image: url(qss:images/splitter_horizontal_dark.png);
+    background-position: center center;
+    background-repeat: none;
+    margin: 2px 4px 2px 4px;
+    height: 2px;
+}
+
+/* Similar to the splitter is the following window separator (but horizontal/vertical is on the opposite way) */
 QMainWindow::separator {
     background-position: center center;
     background-repeat: none;
@@ -1553,13 +1586,10 @@ QRadioButton::indicator:pressed {
     border-color: #adc5ed;
 }
 
-QRadioButton::indicator:disabled {
-    border: 1px solid #6e6e6e;
-}
-
 QRadioButton::indicator:disabled {
     color: #6e6e6e;
     background-color: transparent;
+    border: 1px solid #6e6e6e;
 }
 
 QRadioButton:focus {
@@ -1886,6 +1916,17 @@ QToolBar > QToolButton::menu-arrow:open {
     background-image: url(qss:images/down_arrow_lighter.png);
 }
 
+/* when QToolButton is checked: */
+QToolButton:checked {
+    border: 1px solid #7cabf9;
+    background-color: rgba(124,171,249,60); /* transparency for #7cabf9 color */
+}
+
+QToolButton:checked:hover {
+    border: 1px solid #7cabf9;
+    background-color: rgba(124,171,249,80); /* transparency for #7cabf9 color */
+}
+
 /*The "show more" button  (it can also be stylable with "QToolBarExtension" */
 QToolBar QToolButton#qt_toolbar_ext_button {
     margin: 0px;
diff --git a/src/Gui/Stylesheets/Light-green.qss b/src/Gui/Stylesheets/Light-green.qss
index 6609e1532..bab864d55 100644
--- a/src/Gui/Stylesheets/Light-green.qss
+++ b/src/Gui/Stylesheets/Light-green.qss
@@ -1,14 +1,14 @@
 /*
 ABOUT
 ============================================================================================================
-version 2.04
+version 2.05
 QT theme (stylesheet) specially developed for FreeCAD (http://www.freecadweb.org/).
 It might work with other software that uses QT styling.
 
 
 LICENSE
 ============================================================================================================
-Copyright (c) 2016 Pablo Gil Fernández
+Copyright (c) 2016 Pablo Gil Fernández
 
 This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.
 To view a copy of this license, visit http://creativecommons.org/licenses/by-sa/4.0/.
@@ -93,6 +93,7 @@ Main window
 ==================================================================================================*/
 QMainWindow,
 QDialog,
+QDockWidget,
 QToolBar  {
     background-color: #f5f5f5; /* main background color */
 }
@@ -158,6 +159,38 @@ QMenu::indicator:non-exclusive:checked {
     color: white;
 }
 
+/* Fix for elements inside a drop-down menu */
+QMenu QRadioButton,
+QMenu QCheckBox,
+QMenu QPushButton,
+QMenu QToolButton {
+    color: black; /* same as regular QRadioButton and QCheckBox */
+}
+
+QMenu QRadioButton:hover,
+QMenu QCheckBox:hover,
+QMenu QPushButton:hover,
+QMenu QToolButton:hover,
+QMenu QPushButton:pressed,
+QMenu QToolButton:pressed,
+QMenu QPushButton:selected,
+QMenu QToolButton:selected {
+    color: white;
+    background-color: #94b30f; /* same as QMenu::item:selected and QMenu::item:pressed */
+}
+
+QMenu QRadioButton:disabled,
+QMenu QCheckBox:disabled {
+    color: #6e6e6e;
+}
+
+QMenu QRadioButton::indicator:disabled,
+QMenu QCheckBox::indicator:disabled {
+    color: #6e6e6e;
+    background-color: transparent;
+    border: 1px solid #6e6e6e;
+}
+
 
 /*==================================================================================================
 Tool bar
@@ -935,14 +968,6 @@ QSplitter::handle {
     padding: 0px;
 }
 
-QSplitter::handle:vertical {
-    background-image: url(qss:images/splitter_horizontal_dark.png);
-    background-position: center center;
-    background-repeat: none;
-    margin: 2px 4px 2px 4px;
-    height: 2px;
-}
-
 QSplitter::handle:horizontal {
     background-image: url(qss:images/splitter_vertical_dark.png);
     background-position: center center;
@@ -951,7 +976,15 @@ QSplitter::handle:horizontal {
     width: 2px;
 }
 
-/* Similar to the splitter is the following window separator: */
+QSplitter::handle:vertical {
+    background-image: url(qss:images/splitter_horizontal_dark.png);
+    background-position: center center;
+    background-repeat: none;
+    margin: 2px 4px 2px 4px;
+    height: 2px;
+}
+
+/* Similar to the splitter is the following window separator (but horizontal/vertical is on the opposite way) */
 QMainWindow::separator {
     background-position: center center;
     background-repeat: none;
@@ -1553,13 +1586,10 @@ QRadioButton::indicator:pressed {
     border-color: #c5d675;
 }
 
-QRadioButton::indicator:disabled {
-    border: 1px solid #6e6e6e;
-}
-
 QRadioButton::indicator:disabled {
     color: #6e6e6e;
     background-color: transparent;
+    border: 1px solid #6e6e6e;
 }
 
 QRadioButton:focus {
@@ -1886,6 +1916,17 @@ QToolBar > QToolButton::menu-arrow:open {
     background-image: url(qss:images/down_arrow_lighter.png);
 }
 
+/* when QToolButton is checked: */
+QToolButton:checked {
+    border: 1px solid #a5c61a;
+    background-color: rgba(124,171,249,60); /* transparency for #a5c61a color */
+}
+
+QToolButton:checked:hover {
+    border: 1px solid #a5c61a;
+    background-color: rgba(124,171,249,80); /* transparency for #a5c61a color */
+}
+
 /*The "show more" button  (it can also be stylable with "QToolBarExtension" */
 QToolBar QToolButton#qt_toolbar_ext_button {
     margin: 0px;
diff --git a/src/Gui/Stylesheets/Light-orange.qss b/src/Gui/Stylesheets/Light-orange.qss
index fa55d15b6..482a6c2af 100644
--- a/src/Gui/Stylesheets/Light-orange.qss
+++ b/src/Gui/Stylesheets/Light-orange.qss
@@ -1,14 +1,14 @@
 /*
 ABOUT
 ============================================================================================================
-version 2.04
+version 2.05
 QT theme (stylesheet) specially developed for FreeCAD (http://www.freecadweb.org/).
 It might work with other software that uses QT styling.
 
 
 LICENSE
 ============================================================================================================
-Copyright (c) 2016 Pablo Gil Fernández
+Copyright (c) 2016 Pablo Gil Fernández
 
 This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.
 To view a copy of this license, visit http://creativecommons.org/licenses/by-sa/4.0/.
@@ -93,6 +93,7 @@ Main window
 ==================================================================================================*/
 QMainWindow,
 QDialog,
+QDockWidget,
 QToolBar  {
     background-color: #f5f5f5; /* main background color */
 }
@@ -158,6 +159,38 @@ QMenu::indicator:non-exclusive:checked {
     color: white;
 }
 
+/* Fix for elements inside a drop-down menu */
+QMenu QRadioButton,
+QMenu QCheckBox,
+QMenu QPushButton,
+QMenu QToolButton {
+    color: black; /* same as regular QRadioButton and QCheckBox */
+}
+
+QMenu QRadioButton:hover,
+QMenu QCheckBox:hover,
+QMenu QPushButton:hover,
+QMenu QToolButton:hover,
+QMenu QPushButton:pressed,
+QMenu QToolButton:pressed,
+QMenu QPushButton:selected,
+QMenu QToolButton:selected {
+    color: white;
+    background-color: #daa116; /* same as QMenu::item:selected and QMenu::item:pressed */
+}
+
+QMenu QRadioButton:disabled,
+QMenu QCheckBox:disabled {
+    color: #6e6e6e;
+}
+
+QMenu QRadioButton::indicator:disabled,
+QMenu QCheckBox::indicator:disabled {
+    color: #6e6e6e;
+    background-color: transparent;
+    border: 1px solid #6e6e6e;
+}
+
 
 /*==================================================================================================
 Tool bar
@@ -935,14 +968,6 @@ QSplitter::handle {
     padding: 0px;
 }
 
-QSplitter::handle:vertical {
-    background-image: url(qss:images/splitter_horizontal_dark.png);
-    background-position: center center;
-    background-repeat: none;
-    margin: 2px 4px 2px 4px;
-    height: 2px;
-}
-
 QSplitter::handle:horizontal {
     background-image: url(qss:images/splitter_vertical_dark.png);
     background-position: center center;
@@ -951,7 +976,15 @@ QSplitter::handle:horizontal {
     width: 2px;
 }
 
-/* Similar to the splitter is the following window separator: */
+QSplitter::handle:vertical {
+    background-image: url(qss:images/splitter_horizontal_dark.png);
+    background-position: center center;
+    background-repeat: none;
+    margin: 2px 4px 2px 4px;
+    height: 2px;
+}
+
+/* Similar to the splitter is the following window separator (but horizontal/vertical is on the opposite way) */
 QMainWindow::separator {
     background-position: center center;
     background-repeat: none;
@@ -1553,13 +1586,10 @@ QRadioButton::indicator:pressed {
     border-color: #e0c992;
 }
 
-QRadioButton::indicator:disabled {
-    border: 1px solid #6e6e6e;
-}
-
 QRadioButton::indicator:disabled {
     color: #6e6e6e;
     background-color: transparent;
+    border: 1px solid #6e6e6e;
 }
 
 QRadioButton:focus {
@@ -1886,6 +1916,17 @@ QToolBar > QToolButton::menu-arrow:open {
     background-image: url(qss:images/down_arrow_lighter.png);
 }
 
+/* when QToolButton is checked: */
+QToolButton:checked {
+    border: 1px solid #e3b64d;
+    background-color: rgba(124,171,249,60); /* transparency for #e3b64d color */
+}
+
+QToolButton:checked:hover {
+    border: 1px solid #e3b64d;
+    background-color: rgba(124,171,249,80); /* transparency for #e3b64d color */
+}
+
 /*The "show more" button  (it can also be stylable with "QToolBarExtension" */
 QToolBar QToolButton#qt_toolbar_ext_button {
     margin: 0px;
diff --git a/src/Gui/Stylesheets/images/up-down_arrow_dark.png b/src/Gui/Stylesheets/images/up-down_arrow_dark.png
new file mode 100644
index 000000000..2941cd454
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diff --git a/src/Gui/Stylesheets/images/up-down_arrow_darker.png b/src/Gui/Stylesheets/images/up-down_arrow_darker.png
new file mode 100644
index 000000000..8dc85d4a6
Binary files /dev/null and b/src/Gui/Stylesheets/images/up-down_arrow_darker.png differ
diff --git a/src/Gui/Stylesheets/images/up-down_arrow_disabled_dark.png b/src/Gui/Stylesheets/images/up-down_arrow_disabled_dark.png
new file mode 100644
index 000000000..ba48476e7
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diff --git a/src/Gui/Stylesheets/images/up-down_arrow_disabled_light.png b/src/Gui/Stylesheets/images/up-down_arrow_disabled_light.png
new file mode 100644
index 000000000..d3e2a3012
Binary files /dev/null and b/src/Gui/Stylesheets/images/up-down_arrow_disabled_light.png differ
diff --git a/src/Gui/Stylesheets/images/up-down_arrow_light.png b/src/Gui/Stylesheets/images/up-down_arrow_light.png
new file mode 100644
index 000000000..425744971
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diff --git a/src/Gui/Stylesheets/images/up-down_arrow_lighter.png b/src/Gui/Stylesheets/images/up-down_arrow_lighter.png
new file mode 100644
index 000000000..4db20d77d
Binary files /dev/null and b/src/Gui/Stylesheets/images/up-down_arrow_lighter.png differ