diff --git a/BUILD.md b/BUILD.md
index 2f43b66..55f42f1 100644
--- a/BUILD.md
+++ b/BUILD.md
@@ -32,8 +32,10 @@ rm -r /xxiivv/Nataniev/public/public.projects/builds/Dotgrid-linux-x64/
 rm -r /xxiivv/Nataniev/public/public.projects/builds/Dotgrid-win32-x64/
 
 ~/butler status hundredrabbits/dotgrid
+
 ```
 
+
 ### Build Linux64 / Darwin64 / Windows64(Local)
 ```
 cd /Users/VillaMoirai/Desktop/
diff --git a/sources/index.html b/sources/index.html
index 5e168df..0ce41a9 100644
--- a/sources/index.html
+++ b/sources/index.html
@@ -7,6 +7,7 @@
     <script type="text/javascript" src="scripts/path_close.js"></script>
     <script type="text/javascript" src="scripts/dotgrid.js"></script>
     <script type="text/javascript" src="scripts/keyboard.js"></script>
+    <script type="text/javascript" src="scripts/theme.js"></script>
     <link rel="stylesheet" type="text/css" href="links/reset.css"/>
     <link rel="stylesheet" type="text/css" href="links/fonts.css"/>
     <link rel="stylesheet" type="text/css" href="links/main.css"/>
diff --git a/sources/links/main.css b/sources/links/main.css
index ddd3720..3bec6b7 100644
--- a/sources/links/main.css
+++ b/sources/links/main.css
@@ -1,8 +1,7 @@
 body { background:#fff; padding:30px; font-family: 'input_mono_regular'; -webkit-user-select: none;-webkit-app-region: drag; overflow: hidden;}
 
-#dotgrid { margin:0px auto; position:relative; border:0px solid white; background:white; overflow: hidden; padding:10px;-webkit-app-region: no-drag;}
-#dotgrid .marker { width:2px; height:2px; background:#ddd; position:absolute; margin-top:-1px; margin-left:-1px; border-radius:4px; z-index:50;}
-#dotgrid .marker.block { background:black; }
+#dotgrid { margin:0px auto; position:relative; overflow: hidden; padding:10px;-webkit-app-region: no-drag;}
+#dotgrid .marker { width:2px; height:2px; position:absolute; margin-top:-1px; margin-left:-1px; border-radius:4px; z-index:50;}
 #dotgrid #cursor { width:8px; height:8px; margin-top:-5px; margin-left:-5px; position:absolute; z-index:25; border-radius:5px; border:1px solid black;}
 #dotgrid #cursor_from { width:4px; height:4px; background:white; margin-top:-3px; margin-left:-3px; position:absolute; z-index:2500; border-radius:10px; left:-100px;border:1px solid black;}
 #dotgrid #cursor_to { width:4px; height:4px; background:white; margin-top:-3px; margin-left:-3px; position:absolute; z-index:2500; border-radius:10px; left:-100px; border:1px solid black;}
diff --git a/sources/scripts/dotgrid.js b/sources/scripts/dotgrid.js
index 3a91de8..4895d44 100644
--- a/sources/scripts/dotgrid.js
+++ b/sources/scripts/dotgrid.js
@@ -1,5 +1,7 @@
 function Dotgrid(width,height,grid_x,grid_y,block_x,block_y,thickness = 3,linecap = "round", color = "#000000")
 {
+  this.theme = new Theme();
+
   this.width = width;
   this.height = height;
   this.grid_x = grid_x;
@@ -50,7 +52,7 @@ function Dotgrid(width,height,grid_x,grid_y,block_x,block_y,thickness = 3,lineca
     for (var x = this.grid_x; x >= 0; x--) {
       for (var y = this.grid_y; y >= 0; y--) {
         var marker = document.createElement("div");
-        marker.setAttribute("class",(x % this.block_x == 0 && y % this.block_y == 0 ? "marker block" : "marker"));
+        marker.setAttribute("class",(x % this.block_x == 0 && y % this.block_y == 0 ? "marker bm" : "marker bl"));
         marker.style.left = parseInt(x * this.grid_width + (this.grid_width/2)) +5;
         marker.style.top = parseInt(y * this.grid_height + (this.grid_height/2)) +5;
         this.element.appendChild(marker);
@@ -80,7 +82,7 @@ function Dotgrid(width,height,grid_x,grid_y,block_x,block_y,thickness = 3,lineca
 
     // Vector
     this.svg_el = document.createElementNS("http://www.w3.org/2000/svg", "svg");
-    this.svg_el.setAttribute("class","vector");
+    this.svg_el.setAttribute("class","vector fh");
     this.svg_el.setAttribute("width",this.width+"px");
     this.svg_el.setAttribute("height",this.height+"px");
     this.svg_el.setAttribute("xmlns","http://www.w3.org/2000/svg");
@@ -100,6 +102,8 @@ function Dotgrid(width,height,grid_x,grid_y,block_x,block_y,thickness = 3,lineca
     this.mirror_el.appendChild(this.mirror_path);
 
     this.draw();
+
+    this.theme.start();
   }
 
   // Cursor
@@ -393,4 +397,34 @@ function Dotgrid(width,height,grid_x,grid_y,block_x,block_y,thickness = 3,lineca
     y = parseInt(y/this.grid_height) * this.grid_height + (this.grid_height/2) +5;
     return [parseInt(x),parseInt(y)];
   }
+    
 }
+
+window.addEventListener('dragover',function(e)
+{
+  e.preventDefault();
+  e.stopPropagation();
+  e.dataTransfer.dropEffect = 'copy';
+});
+
+window.addEventListener('drop', function(e)
+{
+  e.preventDefault();
+  e.stopPropagation();
+
+  var files = e.dataTransfer.files;
+
+  for(file_id in files){
+    var file = files[file_id];
+    if(file.name.indexOf(".thm") == -1){ console.log("skipped",file); continue; }
+
+    var path = file.path;
+    var reader = new FileReader();
+    reader.onload = function(e){
+      var o = JSON.parse(e.target.result);
+      dotgrid.theme.install(o);
+    };
+    reader.readAsText(file);
+    return;
+  }
+});
diff --git a/sources/scripts/theme.js b/sources/scripts/theme.js
new file mode 100644
index 0000000..2491ce8
--- /dev/null
+++ b/sources/scripts/theme.js
@@ -0,0 +1,83 @@
+function Theme()
+{
+  this.el = document.createElement("style");
+  this.active = null;
+
+  this.collection = {};
+  this.collection.blanc = { background:"#eee",f_high:"#111",f_med:"#999",f_low:"#bbb",f_inv:"#fff",f_inv:"#000",b_high:"#000",b_med:"#999",b_low:"#ddd",b_inv:"#999",b_inv:"#72dec2" };
+
+  this.start = function()
+  {
+    document.body.appendChild(this.el);
+
+    if(localStorage.theme && is_json(localStorage.theme)){
+      console.log("Theme","Found in localStorage")
+      this.install(JSON.parse(localStorage.theme));  
+    }
+    else{
+      console.log("Theme","Creating new")
+      this.install(this.collection.blanc);
+    }
+  }
+
+  this.save = function()
+  {
+    localStorage.setItem("theme", JSON.stringify(this.active));
+    console.log("Theme","Saved");
+  }
+
+  this.load = function(theme_str)
+  {
+    if(is_json(theme_str)){
+      this.install(JSON.parse(theme_str));
+    }
+    else if(this.collection[theme_str]){
+      this.install(this.collection[theme_str]);
+    }
+    console.log("Theme","Loaded");
+  }
+
+  this.install = function(theme)
+  {
+    var html = "";
+
+    this.active = theme;
+
+    html += "body { background:"+theme.background+" !important }\n";
+    html += ".fh { color:"+theme.f_high+" !important; stroke:"+theme.f_high+" !important }\n";
+    html += ".fm { color:"+theme.f_med+" !important ; stroke:"+theme.f_med+" !important }\n";
+    html += ".fl { color:"+theme.f_low+" !important ; stroke:"+theme.f_low+" !important }\n";
+    html += ".f_inv { color:"+theme.f_inv+" !important ; stroke:"+theme.f_inv+" !important }\n";
+    html += ".f_inv { color:"+theme.f_inv+" !important ; stroke:"+theme.f_inv+" !important }\n";
+    html += ".bh { background:"+theme.b_high+" !important; fill:"+theme.b_high+" !important }\n";
+    html += ".bm { background:"+theme.b_med+" !important ; fill:"+theme.b_med+" !important }\n";
+    html += ".bl { background:"+theme.b_low+" !important ; fill:"+theme.b_low+" !important }\n";
+    html += ".b_inv { background:"+theme.b_inv+" !important ; fill:"+theme.b_inv+" !important }\n";
+
+    html += "#dotgrid #cursor { border-color:"+theme.f_med+"}\n";
+
+    html += "#dotgrid #cursor_from { background:"+theme.f_low+"; border-color:"+theme.f_low+"}\n";
+    html += "#dotgrid #cursor_to { background:"+theme.f_low+"; border-color:"+theme.f_low+"}\n";
+    html += "#dotgrid #cursor_end { background:"+theme.f_low+"; border-color:"+theme.f_low+"}\n";
+    
+    this.el.innerHTML = html;
+    this.save();
+  }
+
+  this.reset = function()
+  {
+    console.log("Theme","reset");
+    this.install(this.collection.blanc);
+  }
+
+  function is_json(text)
+  {
+    try{
+      JSON.parse(text);
+      return true;
+    }
+    catch (error){
+      return false;
+    }
+  }
+}
\ No newline at end of file