diff --git a/data/themes/default/tab_drag_thumb.edc b/data/themes/default/tab_drag_thumb.edc
index 83dc0b50..3934bd38 100644
--- a/data/themes/default/tab_drag_thumb.edc
+++ b/data/themes/default/tab_drag_thumb.edc
@@ -52,7 +52,7 @@ group { name: "terminology/tab_drag_thumb";
                normal: "cr_glow.png";
                border: 9 9 9 9;
             }
-            color: 51 153 255 255;
+            color_class: "GLOW";
          }
       }
 
@@ -104,9 +104,7 @@ group { name: "terminology/tab_drag_thumb";
          description { state: "default" 0.0;
             rel1.to: "terminology.content";
             rel2.to: "terminology.content";
-            color: 255 255 255 255;
-            color2: 51 153 255 128;
-            color3: 51 153 255 20;
+            color_class: "GLOW_TXT";
             align: 0.5 1.0;
             text { font: "Sans"; size: 10;
                align: 0.5 1.0;