diff --git a/platform/org.eclipse.platform/css/e4_basestyle.css b/platform/org.eclipse.platform/css/e4_basestyle.css
index 3d510e1..271d5e3 100644
--- a/platform/org.eclipse.platform/css/e4_basestyle.css
+++ b/platform/org.eclipse.platform/css/e4_basestyle.css
@@ -28,7 +28,7 @@
 }
 
 .MToolControl.TrimStack {
-	frame-image:  url(./winXPTSFrame.PNG);
-	handle-image:  url(./winXPHandle.PNG);
+	frame-image:  url(./winXPTSFrame.png);
+	handle-image:  url(./winXPHandle.png);
 	frame-cuts: 5px 1px 5px 16px;
 }
diff --git a/platform/org.eclipse.platform/css/e4_classic_win7.css b/platform/org.eclipse.platform/css/e4_classic_win7.css
index bbc7f45..041455a 100644
--- a/platform/org.eclipse.platform/css/e4_classic_win7.css
+++ b/platform/org.eclipse.platform/css/e4_classic_win7.css
@@ -22,7 +22,7 @@
 }
 
 .MToolControl.TrimStack {
-	frame-image:  url(./winXPTSFrame.PNG);
-	handle-image:  url(./winXPHandle.PNG);
+	frame-image:  url(./winClassicTSFrame.png);
+	handle-image:  url(./winClassicHandle.png);
 	frame-cuts: 5px 1px 5px 16px;
 }
diff --git a/platform/org.eclipse.platform/css/e4_classic_winxp.css b/platform/org.eclipse.platform/css/e4_classic_winxp.css
index c1f761d..41aa353 100644
--- a/platform/org.eclipse.platform/css/e4_classic_winxp.css
+++ b/platform/org.eclipse.platform/css/e4_classic_winxp.css
@@ -22,7 +22,7 @@
 }
 
 .MToolControl.TrimStack {
-	frame-image:  url(./winXPTSFrame.PNG);
-	handle-image:  url(./winXPHandle.PNG);
+	frame-image:  url(./winClassicTSFrame.png);
+	handle-image:  url(./winClassicHandle.png);
 	frame-cuts: 5px 1px 5px 16px;
 }
diff --git a/platform/org.eclipse.platform/css/e4_default.css b/platform/org.eclipse.platform/css/e4_default.css
index 2c9e91e..2f44bcf 100644
--- a/platform/org.eclipse.platform/css/e4_default.css
+++ b/platform/org.eclipse.platform/css/e4_default.css
@@ -31,7 +31,7 @@
 
 
 .MTrimBar#org-eclipse-ui-main-toolbar  {
-    background-image:  url(./winXPBlue.PNG);	
+    background-image:  url(./winXPBlue.png);	
 }
 
 .MPartStack.active {
diff --git a/platform/org.eclipse.platform/css/e4_default_gtk.css b/platform/org.eclipse.platform/css/e4_default_gtk.css
index 523d15a..785d0f9 100644
--- a/platform/org.eclipse.platform/css/e4_default_gtk.css
+++ b/platform/org.eclipse.platform/css/e4_default_gtk.css
@@ -16,7 +16,12 @@
 }
 
 .MTrimBar#org-eclipse-ui-main-toolbar  {
-    background-image:  url(./gtkGrey.PNG);	
+    background-image:  url(./gtkGrey.png);	
+}
+
+.MToolControl.TrimStack {
+	frame-image:  url(./gtkTSFrame.png);
+	handle-image:  url(./gtkHandle.png);
 }
 
 .MPartStack.active {
diff --git a/platform/org.eclipse.platform/css/e4_default_mac.css b/platform/org.eclipse.platform/css/e4_default_mac.css
index 0eb77ee..88d03e4 100644
--- a/platform/org.eclipse.platform/css/e4_default_mac.css
+++ b/platform/org.eclipse.platform/css/e4_default_mac.css
@@ -18,6 +18,11 @@
     background-color:  #CFCFCF #A8A8A8 100%;	
 }
 
+.MToolControl.TrimStack {
+	frame-image:  url(./macTSFrame.png);
+	handle-image:  url(./macHandle.png);
+}
+
 .MPartStack.active {
 	swt-unselected-tabs-color: #F6F6F6 #D3D3D3 #D1D1D1 #D1D1D1 #D6D6D6 #D6D6D6 #FFFFFF 20% 45% 60% 70% 100% 100%;
     swt-outer-keyline-color: #C4C5C1;
diff --git a/platform/org.eclipse.platform/css/e4_default_mru_on_win7.css b/platform/org.eclipse.platform/css/e4_default_mru_on_win7.css
index e2f0873..4a93668 100644
--- a/platform/org.eclipse.platform/css/e4_default_mru_on_win7.css
+++ b/platform/org.eclipse.platform/css/e4_default_mru_on_win7.css
@@ -15,8 +15,13 @@
     background-color: #E1E6F6; 
 }
 
+.MToolControl.TrimStack {
+	frame-image:  url(./win7TSFrame.png);
+	handle-image:  url(./win7Handle.png);
+}
+
 .MTrimBar#org-eclipse-ui-main-toolbar {
-    background-image:  url(./win7.PNG);	
+    background-image:  url(./win7.png);	
 }
 
 .MPartStack.active {
diff --git a/platform/org.eclipse.platform/css/e4_default_win7.css b/platform/org.eclipse.platform/css/e4_default_win7.css
index 92d612c..1a4f110 100644
--- a/platform/org.eclipse.platform/css/e4_default_win7.css
+++ b/platform/org.eclipse.platform/css/e4_default_win7.css
@@ -16,7 +16,12 @@
 }
 
 .MTrimBar#org-eclipse-ui-main-toolbar {
-    background-image:  url(./win7.PNG);	
+    background-image:  url(./win7.png);	
+}
+
+.MToolControl.TrimStack {
+	frame-image:  url(./win7TSFrame.png);
+	handle-image:  url(./win7Handle.png);
 }
 
 .MPartStack.active {
diff --git a/platform/org.eclipse.platform/css/e4_default_winxp_blu.css b/platform/org.eclipse.platform/css/e4_default_winxp_blu.css
index d5c90bd..c026c44 100644
--- a/platform/org.eclipse.platform/css/e4_default_winxp_blu.css
+++ b/platform/org.eclipse.platform/css/e4_default_winxp_blu.css
@@ -16,7 +16,12 @@
 
 
 .MTrimBar#org-eclipse-ui-main-toolbar  {
-    background-image:  url(./winXPBlue.PNG);	
+    background-image:  url(./winXPBlue.png);	
+}
+
+.MToolControl.TrimStack {
+	frame-image:  url(./winXPBluTSFrame.png);
+	handle-image:  url(./winXPBluHandle.png);
 }
 
 .MPartStack.active {
diff --git a/platform/org.eclipse.platform/css/e4_default_winxp_olv.css b/platform/org.eclipse.platform/css/e4_default_winxp_olv.css
index 8a3dc16..7585bf4 100644
--- a/platform/org.eclipse.platform/css/e4_default_winxp_olv.css
+++ b/platform/org.eclipse.platform/css/e4_default_winxp_olv.css
@@ -26,7 +26,7 @@
 }
 
 .MTrimBar#org-eclipse-ui-main-toolbar {
-    background-image:  url(./winXPOlive.PNG);	
+    background-image:  url(./winXPOlive.png);	
 }
 
 .MPartStack.active {
diff --git a/platform/org.eclipse.platform/images/gtkHandle.png b/platform/org.eclipse.platform/images/gtkHandle.png
new file mode 100644
index 0000000..b0288cf
--- /dev/null
+++ b/platform/org.eclipse.platform/images/gtkHandle.png
Binary files differ
diff --git a/platform/org.eclipse.platform/images/gtkTSFrame.png b/platform/org.eclipse.platform/images/gtkTSFrame.png
new file mode 100644
index 0000000..dd08bba
--- /dev/null
+++ b/platform/org.eclipse.platform/images/gtkTSFrame.png
Binary files differ
diff --git a/platform/org.eclipse.platform/images/macHandle.png b/platform/org.eclipse.platform/images/macHandle.png
new file mode 100644
index 0000000..98b2193
--- /dev/null
+++ b/platform/org.eclipse.platform/images/macHandle.png
Binary files differ
diff --git a/platform/org.eclipse.platform/images/macTSFrame.png b/platform/org.eclipse.platform/images/macTSFrame.png
new file mode 100644
index 0000000..ee32cf5
--- /dev/null
+++ b/platform/org.eclipse.platform/images/macTSFrame.png
Binary files differ
diff --git a/platform/org.eclipse.platform/images/win7Handle.png b/platform/org.eclipse.platform/images/win7Handle.png
new file mode 100644
index 0000000..b73a963
--- /dev/null
+++ b/platform/org.eclipse.platform/images/win7Handle.png
Binary files differ
diff --git a/platform/org.eclipse.platform/images/win7TSFrame.png b/platform/org.eclipse.platform/images/win7TSFrame.png
new file mode 100644
index 0000000..eec6be6
--- /dev/null
+++ b/platform/org.eclipse.platform/images/win7TSFrame.png
Binary files differ
diff --git a/platform/org.eclipse.platform/images/winClassicHandle.png b/platform/org.eclipse.platform/images/winClassicHandle.png
new file mode 100644
index 0000000..cfeb6dd
--- /dev/null
+++ b/platform/org.eclipse.platform/images/winClassicHandle.png
Binary files differ
diff --git a/platform/org.eclipse.platform/images/winClassicTSFrame.png b/platform/org.eclipse.platform/images/winClassicTSFrame.png
new file mode 100644
index 0000000..0b9101c
--- /dev/null
+++ b/platform/org.eclipse.platform/images/winClassicTSFrame.png
Binary files differ
diff --git a/platform/org.eclipse.platform/images/winXPBluHandle.png b/platform/org.eclipse.platform/images/winXPBluHandle.png
new file mode 100644
index 0000000..45441b3
--- /dev/null
+++ b/platform/org.eclipse.platform/images/winXPBluHandle.png
Binary files differ
diff --git a/platform/org.eclipse.platform/images/winXPBluTSFrame.png b/platform/org.eclipse.platform/images/winXPBluTSFrame.png
new file mode 100644
index 0000000..5880d78
--- /dev/null
+++ b/platform/org.eclipse.platform/images/winXPBluTSFrame.png
Binary files differ