diff --git a/karaoke-adjust-1sec.lua b/karaoke-adjust-1sec.lua
index f6f1bf4..83a9d31 100644
--- a/karaoke-adjust-1sec.lua
+++ b/karaoke-adjust-1sec.lua
@@ -71,6 +71,9 @@ end
 
 function mugenizer(subs)
     local first = nil
+    local styles_different = false
+    local styles = 0
+    local i_styles = {}
 
     for i, line in ipairs(subs) do
         if line.class == "info" then
@@ -82,6 +85,11 @@ function mugenizer(subs)
         if line.class == "style" then
             line.fontname = "Arial"
             line.fontsize = "24"
+            i_styles[styles] = i
+            if styles > 0 then
+                styles_different = styles_different or line.color1 ~= subs[i_styles[styles-1]].color1 or line.color2 ~= subs[i_styles[styles-1]].color2 or line.color3 ~= subs[i_styles[styles-1]].color3 or line.color4 ~= subs[i_styles[styles-1]].color4
+            end
+            styles = styles + 1
         end
 
         if line.class == "dialogue" then
@@ -98,6 +106,17 @@ function mugenizer(subs)
         subs[i] = line
     end
 
+    if not styles_different then
+        for i = 0, styles-1, 1 do
+            line = subs[i_styles[i]]
+            line.color1 = "&H008AFF"
+            line.color2 = "&HFFFFFF"
+            line.color3 = "&H000000"
+            line.color4 = "&H000000"
+            subs[i_styles[i]] = line
+        end
+    end
+
     -- add mugen's magic line
     line = subs[first]
     line.comment = true