diff --git a/src/img/icons/transform/tool-align.png b/src/img/icons/transform/tool-center.png
similarity index 100%
rename from src/img/icons/transform/tool-align.png
rename to src/img/icons/transform/tool-center.png
diff --git a/src/js/controller/TransformationsController.js b/src/js/controller/TransformationsController.js
index 90a28943..de89f322 100644
--- a/src/js/controller/TransformationsController.js
+++ b/src/js/controller/TransformationsController.js
@@ -6,7 +6,7 @@
       new pskl.tools.transform.Flip(),
       new pskl.tools.transform.Rotate(),
       new pskl.tools.transform.Clone(),
-      new pskl.tools.transform.Align()
+      new pskl.tools.transform.Center()
     ];
 
     this.toolIconBuilder = new pskl.tools.ToolIconBuilder();
diff --git a/src/js/tools/transform/Align.js b/src/js/tools/transform/Align.js
deleted file mode 100644
index 793c0132..00000000
--- a/src/js/tools/transform/Align.js
+++ /dev/null
@@ -1,19 +0,0 @@
-(function () {
-  var ns = $.namespace('pskl.tools.transform');
-
-  ns.Align = function () {
-    this.toolId = 'tool-align';
-    this.helpText = 'Align selection to the center';
-    this.tooltipDescriptors = [
-      {key : 'ctrl', description : 'Apply to all layers'},
-      {key : 'shift', description : 'Apply to all frames'}
-    ];
-  };
-
-  pskl.utils.inherit(ns.Align, ns.AbstractTransformTool);
-
-  ns.Align.prototype.applyToolOnFrame_ = function (frame, altKey) {
-    ns.TransformUtils.align(frame);
-  };
-
-})();
diff --git a/src/js/tools/transform/Center.js b/src/js/tools/transform/Center.js
new file mode 100644
index 00000000..7d08cb6f
--- /dev/null
+++ b/src/js/tools/transform/Center.js
@@ -0,0 +1,19 @@
+(function () {
+  var ns = $.namespace('pskl.tools.transform');
+
+  ns.Center = function () {
+    this.toolId = 'tool-center';
+    this.helpText = 'Align image to the center';
+    this.tooltipDescriptors = [
+      {key : 'ctrl', description : 'Apply to all layers'},
+      {key : 'shift', description : 'Apply to all frames'}
+    ];
+  };
+
+  pskl.utils.inherit(ns.Center, ns.AbstractTransformTool);
+
+  ns.Center.prototype.applyToolOnFrame_ = function (frame) {
+    ns.TransformUtils.center(frame);
+  };
+
+})();
diff --git a/src/js/tools/transform/TransformUtils.js b/src/js/tools/transform/TransformUtils.js
index eee5e307..042b58e0 100644
--- a/src/js/tools/transform/TransformUtils.js
+++ b/src/js/tools/transform/TransformUtils.js
@@ -64,22 +64,20 @@
       return frame;
     },
 
-    align : function(frame) {
+    center : function(frame) {
       // Figure out the boundary
       var minx = frame.width;
       var miny = frame.height;
       var maxx = 0;
       var maxy = 0;
-      for (var col = 0; col < frame.width; col++) {
-        for (var row = 0; row < frame.height; row++) {
-          if (frame.pixels[col][row] !== Constants.TRANSPARENT_COLOR) {
-            miny = Math.min(miny, row);
-            maxy = Math.max(maxy, row);
-            minx = Math.min(minx, col);
-            maxx = Math.max(maxx, col);
-          }
+      frame.forEachPixel(function (color, x, y) {
+        if (color !== Constants.TRANSPARENT_COLOR) {
+          minx = Math.min(minx, x);
+          maxx = Math.max(maxx, x);
+          miny = Math.min(miny, y);
+          maxy = Math.max(maxy, y);
         }
-      }
+      });
 
       // Calculate how much to move the pixels
       var bw = (maxx - minx + 1) / 2;
diff --git a/src/piskel-script-list.js b/src/piskel-script-list.js
index a1aa193f..ede3a844 100644
--- a/src/piskel-script-list.js
+++ b/src/piskel-script-list.js
@@ -201,7 +201,7 @@
   "js/tools/drawing/ColorSwap.js",
   "js/tools/drawing/DitheringTool.js",
   "js/tools/transform/AbstractTransformTool.js",
-  "js/tools/transform/Align.js",
+  "js/tools/transform/Center.js",
   "js/tools/transform/Clone.js",
   "js/tools/transform/Flip.js",
   "js/tools/transform/Rotate.js",