textArea should be opaque by default

databrowser-gui/src/main/java/org/cdma/gui/databrowser/view/DynamicForegroundAdaptableTextArea.java

@@ -80,6 +80,7 @@ public class DynamicForegroundAdaptableTextArea extends AdaptableTextArea {
 
         public UpdateForegroundTextArea() {
             super();
+            textArea.setOpaque(true);
         }
 
         @Override