diff --git a/README.md b/README.md
index d4dd791..2e40f46 100644
--- a/README.md
+++ b/README.md
@@ -13,11 +13,11 @@ Ronin is a simple open-source graphic design tool.
 ### Methods
 
 ### Ports
-- `speed->` *0/50* The cursor speed.
-- `distance->` *0/9999* The cursor distance.
-- `->red->` *0/255* The brush color value(red).
-- `->green->` *0/255* The brush color value(green).
-- `->blue->` *0/255* The brush color value(blue).
+- `speed->` **(0/50)** The cursor speed.
+- `distance->` **(0/9999)** The cursor distance.
+- `->red->` **(0/255)** The brush color value(red).
+- `->green->` **(0/255)** The brush color value(green).
+- `->blue->` **(0/255)** The brush color value(blue).
 
 ## eraser
 ### Settings
@@ -46,8 +46,8 @@ Ronin is a simple open-source graphic design tool.
 - `stroke:`, no details.
 
 ### Ports
-- `step->` *0/100* The tween line index..
-- `->thickness->` *4/100* The tween line thickness..
+- `step->` **(0/100)** The tween line index..
+- `->thickness->` **(4/100)** The tween line thickness..
 
 
 ## License
diff --git a/sources/scripts/docs.js b/sources/scripts/docs.js
index db124c1..65d496c 100644
--- a/sources/scripts/docs.js
+++ b/sources/scripts/docs.js
@@ -14,7 +14,7 @@ function Docs()
 
     dialog.showSaveDialog((fileName) => {
       if (fileName === undefined){ return; }
-      fs.writeFile("README.md", str, (err) => {
+      fs.writeFile(fileName+".md", str, (err) => {
         if(err){ alert("An error ocurred creating the file "+ err.message); return; }
       });
     }); 
@@ -73,7 +73,7 @@ function Docs()
     for(port_name in ports){
       var port = ports[port_name];
       console.log(ports);
-      html += "- `"+(port.input ? '->' : '')+""+port.name+""+(port.output ? '->' : '')+"` *"+port.value+"/"+port.max+"* "+port.docs+".\n";
+      html += "- `"+(port.input ? '->' : '')+""+port.name+""+(port.output ? '->' : '')+"` **("+port.value+"/"+port.max+")** "+port.docs+".\n";
     }
     return html;  
   }
diff --git a/sources/scripts/io.js b/sources/scripts/io.js
index 41af878..2275810 100644
--- a/sources/scripts/io.js
+++ b/sources/scripts/io.js
@@ -1,5 +1,18 @@
 function IO()
 {
+  this.render = function()
+  {
+    var fs = require('fs');
+    var img = ronin.render.image();
+    var data = img.replace(/^data:image\/\w+;base64,/, "");
+    var buf = new Buffer(data, 'base64');
+
+    dialog.showSaveDialog((fileName) => {
+      if (fileName === undefined){ return; }
+      fs.writeFile(fileName+'.png', buf);
+    }); 
+  }
+
   this.drag_over = function(e)
   {
     e.stopPropagation();
diff --git a/sources/scripts/keyboard.js b/sources/scripts/keyboard.js
index df530d5..a2458d0 100644
--- a/sources/scripts/keyboard.js
+++ b/sources/scripts/keyboard.js
@@ -33,6 +33,11 @@ function Keyboard()
       ronin.render.clear();
     }
 
+    if(e.key == "r" && (e.ctrlKey || e.metaKey)){
+      e.preventDefault();
+      ronin.io.render();
+    }
+
     if(e.key == "H" && (e.ctrlKey || e.metaKey) && e.shiftKey){
       e.preventDefault();
       ronin.docs.export();
diff --git a/sources/scripts/layer.js b/sources/scripts/layer.js
index bd2f399..c700e79 100644
--- a/sources/scripts/layer.js
+++ b/sources/scripts/layer.js
@@ -35,7 +35,7 @@ function Layer()
 
   this.image = function()
   {
-    return this.element.toDataURL('image/png');
+    return this.el.toDataURL('image/png');
   }
 
   this.clear = function()
diff --git a/sources/scripts/port.js b/sources/scripts/port.js
index 7c63a2f..b7c8287 100644
--- a/sources/scripts/port.js
+++ b/sources/scripts/port.js
@@ -14,6 +14,7 @@ function Port(host,name,input,output,value,max,docs)
     this.value = value;
     var target = this.host.routes[this.name];
 
+    if(!this.output){ return; }
     if(!target){ console.log("No output for",this.name); return; }
     
     this.host.ports[target].write(this.value);