diff --git a/www/js/plugins/JsScript12Set.js b/www/js/plugins/JsScript12Set.js
index 81004c6..f53ba4f 100644
--- a/www/js/plugins/JsScript12Set.js
+++ b/www/js/plugins/JsScript12Set.js
@@ -147,14 +147,10 @@ Window_ChoiceList.prototype.itemRectForText = function(index) {
     var rect = this.itemRect(index);
 if ($gameSystem.vnChoices) {
 var txt = $gameMessage._choices[index];
-var icons = txt.match(/\\i\[/g) || txt.match(/\\I\[/g);
-icons = icons ? icons.length * 36 : 0;
-txt = this.convertEscapeCharacters(txt,index);
-txt = txt.replace(/i\[\d*\]/g,"");
-txt = txt.replace(/I\[\d*\]/g,"");
-txt = txt.replace(/c\[\d*\]/g,"");
-txt = txt.replace(/C\[\d*\]/g,"");
-var txtSize = this.textWidth(txt) + icons;
+// Use textWidthEx to measure the actual rendered width including escape codes
+// Add the same prefix used in drawItem for accurate measurement
+var fullText = SCol.Blk0 + txt;
+var txtSize = this.textWidthEx(fullText);
 rect.x = (Galv.VNC.width - txtSize) / 2;
 } else {
 rect.x += this.textPadding();