diff --git a/scripts/commander.js b/scripts/commander.js
index 5e94696..78d9590 100644
--- a/scripts/commander.js
+++ b/scripts/commander.js
@@ -16,11 +16,11 @@ function Commander(element,element_input)
     this.element_input.value = "";
   }
   
-  this.active = function(cmd_array)
+  this.active = function(content)
   {
-    var key = cmd_array[0];
-    cmd_array.shift();
-    var cmd = new Command(cmd_array);
+    var key = content[0];
+    content.shift();
+    var cmd = new Command(content);
     
     switch(key) {
       case "@":
@@ -55,11 +55,11 @@ function Commander(element,element_input)
     this.hide();
   }
   
-  this.passive = function(cmd_array)
+  this.passive = function(content)
   {
-    var key = cmd_array[0];
-    cmd_array.shift();
-    this.cmd = new Command(cmd_array);
+    var key = content[0];
+    content.shift();
+    this.cmd = new Command(content);
     
     switch(key) {
       case "@":
diff --git a/scripts/ronin.canvas.js b/scripts/ronin.canvas.js
index 851b4fd..cb67fc6 100644
--- a/scripts/ronin.canvas.js
+++ b/scripts/ronin.canvas.js
@@ -6,7 +6,7 @@ function Canvas(element)
   
   this.active = function(cmd)
   {
-    if(cmd.bang()){ this.context().clearRect(0, 0, this.element.width, this.element.height); }
+    if(cmd.bang()){ clear(); }
     
     if(cmd.rect()){
       this.resize(cmd.rect());
@@ -50,4 +50,9 @@ function Canvas(element)
   {
     return this.element.getContext('2d');
   }
+  
+  this.clear = function()
+  {
+    this.context().clearRect(0, 0, this.element.width, this.element.height);
+  }
 }
\ No newline at end of file
diff --git a/scripts/ronin.file.js b/scripts/ronin.file.js
index 02246ab..c9583f6 100644
--- a/scripts/ronin.file.js
+++ b/scripts/ronin.file.js
@@ -16,6 +16,9 @@ function File()
     
     base_image = new Image();
     base_image.src = cmd.value() && this.storage[cmd.value()] ? this.storage[cmd.value()] : cmd.path();
+    base_image.src += '?' + new Date().getTime();
+    base_image.crossOrigin = "Anonymous";
+    
     base_image.onload = function(){
       var width = base_image.naturalWidth;
       var height = base_image.naturalHeight;
@@ -63,7 +66,7 @@ function File()
     else{
       var d = ronin.canvas.element.toDataURL("image/png");
       var w = window.open('about:blank','image from canvas');
-      w.document.write("<title>"+(cmd.cmd_array[0] ? cmd.cmd_array[0] : "Untitled")+"</title><img src='"+d+"' alt='from canvas'/>");
+      w.document.write("<title>"+(cmd.content[0] ? cmd.content[0] : "Untitled")+"</title><img src='"+d+"' alt='from canvas'/>");
     }
   }
 }
\ No newline at end of file
diff --git a/scripts/ronin.filter.js b/scripts/ronin.filter.js
index 40de277..c65d6b9 100644
--- a/scripts/ronin.filter.js
+++ b/scripts/ronin.filter.js
@@ -4,16 +4,50 @@ function Filter(element)
   
   this.active = function(cmd)
   {
-    console.log("Nothing to do.");
+    if(cmd.content.length < 1){ return; }
+    
+    var p = cmd.content;
+    var filter_name = p[0];
+    p.shift();
+    
+    switch(filter_name) {
+      case "saturation":
+        this.filter_saturation(p);
+        break;
+    }
   }
   
   this.passive = function(cmd)
   {
-    console.log("Nothing to do.");
   }
   
   this.hint = function(cmd)
   {
     return "Filter: ";
   }
+  
+  // Filters
+  
+  this.filter_saturation = function()
+  {
+    var imgPixels = this.pixels();
+    for(var y = 0; y < imgPixels.height; y++){
+  		for(var x = 0; x < imgPixels.width; x++){
+  			var i = (y * 4) * imgPixels.width + x * 4;
+  			var avg = (imgPixels.data[i] + imgPixels.data[i + 1] + imgPixels.data[i + 2]) / 3;
+  			imgPixels.data[i] = avg;
+  			imgPixels.data[i + 1] = avg;
+  			imgPixels.data[i + 2] = avg;
+  		}
+  	}
+  	ronin.canvas.clear();
+  	ronin.canvas.context().putImageData(imgPixels, 0, 0, 0, 0, imgPixels.width, imgPixels.height);
+  }
+  
+  //
+  
+  this.pixels = function()
+  {
+    return ronin.canvas.context().getImageData(0,0,ronin.canvas.element.width,ronin.canvas.element.height);
+  }
 }
\ No newline at end of file
diff --git a/scripts/unit.command.js b/scripts/unit.command.js
index 7f5d1f9..6af5798 100644
--- a/scripts/unit.command.js
+++ b/scripts/unit.command.js
@@ -1,60 +1,60 @@
-function Command(cmd_array)
+function Command(content)
 {
-  this.cmd_array = cmd_array;
+  this.content = content;
   
   this.rect = function()
   {
-    for (i = 0; i < this.cmd_array.length; i++) {
-      if(this.cmd_array[i].indexOf("x") >= 0){ return new Rect(this.cmd_array[i]); }
+    for (i = 0; i < this.content.length; i++) {
+      if(this.content[i].indexOf("x") >= 0){ return new Rect(this.content[i]); }
     }
     return null;
   }
   
   this.position = function()
   {
-    for (i = 0; i < this.cmd_array.length; i++) {
-      if(this.cmd_array[i].indexOf(",") >= 0){ return new Position(this.cmd_array[i]); }
+    for (i = 0; i < this.content.length; i++) {
+      if(this.content[i].indexOf(",") >= 0){ return new Position(this.content[i]); }
     }
     return null;
   }
   
   this.color = function()
   {
-    for (i = 0; i < this.cmd_array.length; i++) {
-      if(this.cmd_array[i].indexOf("#") >= 0){ return new Color(this.cmd_array[i]); }
+    for (i = 0; i < this.content.length; i++) {
+      if(this.content[i].indexOf("#") >= 0){ return new Color(this.content[i]); }
     }
     return null;
   }
   
   this.path = function()
   {
-    for (i = 0; i < this.cmd_array.length; i++) {
-      if(this.cmd_array[i].indexOf("/") >= 0){ return this.cmd_array[i]; }
+    for (i = 0; i < this.content.length; i++) {
+      if(this.content[i].indexOf("/") >= 0){ return this.content[i]; }
     }
     return null;
   }
   
   this.value = function()
   {
-    for (i = 0; i < this.cmd_array.length; i++) {
-      var test = /[^$\-\d]/.test(this.cmd_array[i]);
-      if(!test){ return parseFloat(this.cmd_array[i]); }
+    for (i = 0; i < this.content.length; i++) {
+      var test = /[^$\-\d]/.test(this.content[i]);
+      if(!test){ return parseFloat(this.content[i]); }
     }
     return null;
   }
   
   this.noise = function()
   {
-    for (i = 0; i < this.cmd_array.length; i++) {
-      if(this.cmd_array[i].indexOf("?") >= 0){ return parseInt(this.cmd_array[i][1]); }
+    for (i = 0; i < this.content.length; i++) {
+      if(this.content[i].indexOf("?") >= 0){ return parseInt(this.content[i][1]); }
     }
     return null;
   }
   
   this.bang = function()
   {
-    for (i = 0; i < this.cmd_array.length; i++) {
-      if(this.cmd_array[i].indexOf("!") >= 0){ return true; }
+    for (i = 0; i < this.content.length; i++) {
+      if(this.content[i].indexOf("!") >= 0){ return true; }
     }
     return null;
   }