diff --git a/tools/viz.sh b/tools/viz.sh
index d73390e..950e763 100755
--- a/tools/viz.sh
+++ b/tools/viz.sh
@@ -10,7 +10,7 @@ merge_diff() {
       export RES=0
     fi
     if [[ $RES -eq 0 ]]; then
-      export RES="»"
+      export RES="⋈"
     fi
 }
 
@@ -22,17 +22,17 @@ function dynamic() {
         s=""
         for ((i=10; i<22; i++)) ; do
             if [ -f "C-$i.data" ] ; then
-                s="${s}≡"
+                s="${s}△"
             else
                 s="$s "
             fi
             if [ -f "B-$i.data" ] ; then
-                s="${s}="
+                s="${s}◁"
             else
                 s="$s "
             fi
             if [ -f "A-$i.data" ] ; then
-                s="${s}-"
+                s="${s}▷"
             else
                 s="$s "
             fi