diff --git a/tools/config.sh b/tools/config.sh
index aaac4da..9db708e 100644
--- a/tools/config.sh
+++ b/tools/config.sh
@@ -4,7 +4,7 @@ Img_Width=1024
 Img_Height=720
 
 # for imagemagick
-TEXTCOL="Red"
-STROKOL="OliveDrab"
+TEXTCOL="Gray70"
+STROKOL="DarkOliveGreen"
 
 NBFRAMES=450