diff --git a/main.js b/main.js
index 9eaa154..afa6dc9 100644
--- a/main.js
+++ b/main.js
@@ -56,7 +56,7 @@ app.on('ready', () =>
     is_shown = true;
   })
   // Open the DevTools.
-  win.webContents.openDevTools()
+  // win.webContents.openDevTools()
 })
 
 app.on('window-all-closed', () => 
diff --git a/sources/scripts/dotgrid.js b/sources/scripts/dotgrid.js
index 9e21855..fc6e3f2 100644
--- a/sources/scripts/dotgrid.js
+++ b/sources/scripts/dotgrid.js
@@ -135,7 +135,7 @@ function Dotgrid(width,height,grid_x,grid_y,block_x,block_y,thickness = 3,lineca
 
     this.cursor.style.left = Math.floor(-(pos.x-this.grid_width));
     this.cursor.style.top = Math.floor(pos.y+this.grid_height);
-    this.cursor_coord.className = -pos.x > 150 ? "fl left" : "fl"
+    this.cursor_coord.className = -pos.x > this.width/2 ? "fl left" : "fl"
     this.cursor_coord.textContent = parseInt(-pos.x/this.grid_width)+","+parseInt(pos.y/this.grid_height);
   }