diff --git a/README.md b/README.md
index 7ec7400..022d6e7 100644
--- a/README.md
+++ b/README.md
@@ -35,6 +35,17 @@ JSON Formatter is an AngularJS directive for rendering JSON objects in HTML with
   ```
 * `open` attribute accepts a number which indicates how many levels rendered JSON should be opened
 
+#### Configuration
+
+You can use `JSONFormatterConfig` provider to configure JOSN Formatter.
+
+Available configurations
+
+* #####`hoverPreview`
+ ** `enabled`: enable preview on hover
+ ** `arrayCount`: number of array items to show in preview
+ ** `fieldCount`: number of object properties to show for object preview
+
 ## Demo
 See [Examples here](http://azimi.me/json-formatter/demo/demo.html)
 
diff --git a/demo/demo.js b/demo/demo.js
index 0cada53..02433b9 100644
--- a/demo/demo.js
+++ b/demo/demo.js
@@ -1,6 +1,9 @@
 var app = angular.module('demo', ['ngSanitize', 'jsonFormatter']);
 
-app.controller('MainCtrl', function ($scope) {
+app.controller('MainCtrl', function ($scope, JSONFormatterConfig) {
+
+  JSONFormatterConfig.hoverPreview.enabled = true;
+
   $scope.undef = undefined;
   $scope.textarea = '{}';
   $scope.complex = {
diff --git a/src/json-formatter.js b/src/json-formatter.js
index fee3675..75f3616 100644
--- a/src/json-formatter.js
+++ b/src/json-formatter.js
@@ -1,44 +1,51 @@
 'use strict';
 
 angular.module('jsonFormatter', ['RecursionHelper'])
-.provider('thumbnail', function thumbnailProvider() {
 
-  var enabled = false;
-  var arrayCount = 100;
-  var fieldCount = 5;
-  return {
-
-    get enabled() {
-      return enabled;
-    },
-    set enabled(value) {
-      enabled = !!value;
-    },
+.provider('JSONFormatterConfig', function JSONFormatterConfigProvider() {
 
-    get arrayCount() {
-      return arrayCount;
-    },
-    set arrayCount(value) {
-      arrayCount = parseInt(value, 10);
-    },
-
-    get fieldCount() {
-      return fieldCount;
-    },
-    set fieldCount(value) {
-      fieldCount = parseInt(value, 10);
-    },
+  // Default values for hover preview config
+  var hoverPreviewConfig = {
+    enabled: false,
+    arrayCount: 100,
+    fieldCount: 5
+  };
 
-    $get: function () {
-      return {
-        enabled: enabled,
-        arrayCount: arrayCount,
-        fieldCount: fieldCount
-      };
+  return {
+    hoverPreview: {
+      get enabled() {
+        return hoverPreviewConfig.enabled;
+      },
+      set enabled(value) {
+        hoverPreviewConfig.enabled = !!value;
+      },
+
+      get arrayCount() {
+        return hoverPreviewConfig.arrayCount;
+      },
+      set arrayCount(value) {
+        hoverPreviewConfig.arrayCount = parseInt(value, 10);
+      },
+
+      get fieldCount() {
+        return hoverPreviewConfig.fieldCount;
+      },
+      set fieldCount(value) {
+        hoverPreviewConfig.fieldCount = parseInt(value, 10);
+      },
+
+      $get: function () {
+        return {
+          enabled: hoverPreviewConfig.enabled,
+          arrayCount: hoverPreviewConfig.arrayCount,
+          fieldCount: hoverPreviewConfig.fieldCount
+        };
+      }
     }
   };
 })
-.directive('jsonFormatter', ['RecursionHelper', 'thumbnail', function (RecursionHelper, thumbnail) {
+
+.directive('jsonFormatter', ['RecursionHelper', 'JSONFormatterConfig', function jsonFormatterDirective(RecursionHelper, JSONFormatterConfig) {
   function escapeString(str) {
     return str.replace('"', '\"');
   }
@@ -81,7 +88,7 @@ angular.module('jsonFormatter', ['RecursionHelper'])
       // Remove content of the function
       return object.toString()
           .replace(/[\r\n]/g, '')
-          .replace(/\{.*\}/, '') + '{ ... }';
+          .replace(/\{.*\}/, '') + '{…}';
 
     }
     return value;
@@ -99,7 +106,7 @@ angular.module('jsonFormatter', ['RecursionHelper'])
     return value;
   }
 
-  function link(scope, element, attributes) {
+  function link(scope) {
     scope.isArray = function () {
       return angular.isArray(scope.json);
     };
@@ -111,8 +118,8 @@ angular.module('jsonFormatter', ['RecursionHelper'])
     scope.getKeys = function (){
       if (scope.isObject()) {
         return Object.keys(scope.json).map(function(key) {
-            if (key === '') { return '""'; }
-            return key;
+          if (key === '') { return '""'; }
+          return key;
         });
       }
     };
@@ -164,15 +171,14 @@ angular.module('jsonFormatter', ['RecursionHelper'])
     };
 
     scope.showThumbnail = function () {
-      return !!thumbnail.enabled && scope.isObject() && !scope.isOpen;
+      return !!JSONFormatterConfig.hoverPreview.enabled && scope.isObject() && !scope.isOpen;
     };
 
     scope.getThumbnail = function () {
       if (scope.isArray()) {
-        //
-        // if array length is 256, greater then 100
-        // show "Array[256]"
-        if (scope.json.length > thumbnail.arrayCount) {
+
+        // if array length is greater then 100 it shows "Array[101]"
+        if (scope.json.length > JSONFormatterConfig.hoverPreview.arrayCount) {
           return 'Array[' + scope.json.length + ']';
         } else {
           return '[' + scope.json.map(getPreview).join(', ') + ']';
@@ -180,20 +186,16 @@ angular.module('jsonFormatter', ['RecursionHelper'])
       } else {
 
         var keys = scope.getKeys();
-        //
-        // the first five keys (like Chrome Developer Tool)
-        var narrowKeys = keys.slice(0, thumbnail.fieldCount);
 
+        // the first five keys (like Chrome Developer Tool)
+        var narrowKeys = keys.slice(0, JSONFormatterConfig.hoverPreview.fieldCount);
 
-        //
         // json value schematic information
         var kvs = narrowKeys
           .map(function (key) { return key + ':' + getPreview(scope.json[key]); });
 
-        //
-        // if keys count greater then 5
-        // then show ellipsis
-        var ellipsis = keys.length >= 5 ? "…" : '';
+        // if keys count greater then 5 then show ellipsis
+        var ellipsis = keys.length >= 5 ? '…' : '';
 
         return '{' + kvs.join(', ') + ellipsis + '}';
       }
diff --git a/src/json-formatter.less b/src/json-formatter.less
index ef6d9fa..c5a633f 100644
--- a/src/json-formatter.less
+++ b/src/json-formatter.less
@@ -80,7 +80,7 @@
   > a >.thumbnail-text {
     opacity: 0;
     transition: opacity .15s ease-in;
-    font-style:italic;
+    font-style: italic;
   }
 
   &:hover > a > .thumbnail-text {