diff --git a/bundles/org.eclipse.ui.themes/css/e4-dark_linux.css b/bundles/org.eclipse.ui.themes/css/e4-dark_linux.css
index 346a75f553b..3f69537445f 100644
--- a/bundles/org.eclipse.ui.themes/css/e4-dark_linux.css
+++ b/bundles/org.eclipse.ui.themes/css/e4-dark_linux.css
@@ -115,6 +115,12 @@ ImageBasedFrame,
 .Editor Form Composite,
 .Editor Form Composite Tree,
 .MPartStack.active .Editor Form Composite Tree
+{
+	background-color: #1E1F22;
+}
+
+#org-eclipse-e4-ui-compatibility-editor Canvas,
+#org-eclipse-e4-ui-compatibility-editor Canvas > *
 {
 	background-color: #1E1F22;
 }
\ No newline at end of file
diff --git a/bundles/org.eclipse.ui.themes/css/e4-dark_mac.css b/bundles/org.eclipse.ui.themes/css/e4-dark_mac.css
index 4e4cc742098..5df5b149bca 100644
--- a/bundles/org.eclipse.ui.themes/css/e4-dark_mac.css
+++ b/bundles/org.eclipse.ui.themes/css/e4-dark_mac.css
@@ -101,6 +101,12 @@ Button  {
 .Editor Form Composite,
 .Editor Form Composite Tree,
 .MPartStack.active .Editor Form Composite Tree
+{
+	background-color: #1E1F22;
+}
+
+#org-eclipse-e4-ui-compatibility-editor Canvas,
+#org-eclipse-e4-ui-compatibility-editor Canvas > *
 {
 	background-color: #1E1F22;
 }
\ No newline at end of file
diff --git a/bundles/org.eclipse.ui.themes/css/e4-dark_win.css b/bundles/org.eclipse.ui.themes/css/e4-dark_win.css
index 301c680ef8f..60ff8afe218 100644
--- a/bundles/org.eclipse.ui.themes/css/e4-dark_win.css
+++ b/bundles/org.eclipse.ui.themes/css/e4-dark_win.css
@@ -186,3 +186,9 @@ ImageBasedFrame,
 {
 	background-color: #1E1F22;
 }
+
+#org-eclipse-e4-ui-compatibility-editor Canvas,
+#org-eclipse-e4-ui-compatibility-editor Canvas > *
+{
+	background-color: #1E1F22;
+}