diff --git a/themes/Default/common.css b/themes/Default/common.css
index 59df925cec..d2b090642a 100644
--- a/themes/Default/common.css
+++ b/themes/Default/common.css
@@ -484,6 +484,12 @@ button.titlebutton
 {
   border-color: transparent;
   box-shadow: none;
+  color: @fg-color;
+}
+
+button.titlebutton image
+{
+  color: @fg-color;
 }
 
 button:checked, button.titlebutton:hover {