diff --git a/README.md b/README.md
index ced173a..ededa46 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ This page contains information about installing the Library for PHP.
 
 ### Requirements
 
-- PHP version 5.3.0 or greater
+- PHP version 5.4.0 or greater
 - The GD PHP extension
 
 ### Obtaining the client library
@@ -29,7 +29,7 @@ You can install the library by adding it as a dependency to your composer.json.
 
 ```json
   "require": {
-    "davaxi/sparkline": "^1.1"
+    "davaxi/sparkline": "^1.2"
   }
 ```
 
@@ -140,6 +140,36 @@ $sparkline->save('/your/path/to/save/picture');
 $sparkline->destroy(); // Destroy picture after generated / displayed / saved
 ```
 
+### Multiple sparkline series
 
+```php
+$sparkline = new Davaxi\Sparkline();
+
+// For add series
+$sparkline->addSeries([0,1,2,3]);
+$sparkline->addSeries([2,3,5,6]);
+
+// Or 
 
+$sparkline->setData(
+    [0,1,2,3],
+    [2,3,5,6]
+);
 
+// For add point on series
+$sparkline->addPoint('first', 3, '#efefef', 0); // Add point on series 0
+$sparkline->addPoint('last', 3, '#efefef', 1); // add point on series 1
+
+// For fill colors, specify on last argument series index's
+$sparkline->setFillColorHex('#8b1c2b', 0);
+$sparkline->setFillColorHex('#8bdddf', 1);
+// or
+$sparkline->setFillColorRGB(139, 28, 43, 0);
+$sparkline->setFillColorRGB(139, 28, 55, 1);
+
+// For line colors, specify on last argument series index's
+$sparkline->setLineColorHex('#1c628b', 0);
+$sparkline->setLineColorHex('#1c62df', 1);
+// or
+$sparkline->setLineColorRGB(28, 98, 139, 0);
+$sparkline->setLineColorRGB(28, 98, 55, 1);
\ No newline at end of file
diff --git a/composer.json b/composer.json
index cf23cdd..965bfc6 100644
--- a/composer.json
+++ b/composer.json
@@ -1,7 +1,7 @@
 {
     "name": "davaxi/sparkline",
     "description": "PHP Class (using GD) to generate sparklines",
-    "version": "1.1.2",
+    "version": "1.2.0",
     "type": "library",
     "keywords": [
         "sparkline",
diff --git a/tests/SparklineTest.php b/tests/SparklineTest.php
index 877dd11..5d98249 100644
--- a/tests/SparklineTest.php
+++ b/tests/SparklineTest.php
@@ -160,18 +160,18 @@ public function testSetLineColorHex()
     {
         $this->sparkline->setLineColorHex('#0f354b');
         $color = $this->sparkline->getAttribute('lineColor');
-        $this->assertEquals([15, 53, 75], $color);
+        $this->assertEquals([[15, 53, 75]], $color);
 
         $this->sparkline->setLineColorHex('#666');
         $color = $this->sparkline->getAttribute('lineColor');
-        $this->assertEquals([102, 102, 102], $color);
+        $this->assertEquals([[102, 102, 102]], $color);
     }
 
     public function testSetLineColorRGB()
     {
         $this->sparkline->setLineColorRGB(123, 233, 199);
         $color = $this->sparkline->getAttribute('lineColor');
-        $this->assertEquals([123, 233, 199], $color);
+        $this->assertEquals([[123, 233, 199]], $color);
     }
 
     /**
@@ -186,18 +186,18 @@ public function testSetFillColorHex()
     {
         $this->sparkline->setFillColorHex('#0f354b');
         $color = $this->sparkline->getAttribute('fillColor');
-        $this->assertEquals([15, 53, 75], $color);
+        $this->assertEquals([[15, 53, 75]], $color);
 
         $this->sparkline->setFillColorHex('#666');
         $color = $this->sparkline->getAttribute('fillColor');
-        $this->assertEquals([102, 102, 102], $color);
+        $this->assertEquals([[102, 102, 102]], $color);
     }
 
     public function testSetFillColorRGB()
     {
         $this->sparkline->setFillColorRGB(123, 233, 199);
         $color = $this->sparkline->getAttribute('fillColor');
-        $this->assertEquals([123, 233, 199], $color);
+        $this->assertEquals([[123, 233, 199]], $color);
     }
 
     public function testSetLineThickness()
@@ -211,19 +211,19 @@ public function testSetData()
     {
         $this->sparkline->setData([]);
         $data = $this->sparkline->getAttribute('data');
-        $this->assertEquals([0,0], $data);
+        $this->assertEquals([[0,0]], $data);
 
         $this->sparkline->setData([1]);
         $data = $this->sparkline->getAttribute('data');
-        $this->assertEquals([1,1], $data);
+        $this->assertEquals([[1,1]], $data);
 
         $this->sparkline->setData([1, 2]);
         $data = $this->sparkline->getAttribute('data');
-        $this->assertEquals([1,2], $data);
+        $this->assertEquals([[1,2]], $data);
 
         $this->sparkline->setData([1, 3, 5]);
         $data = $this->sparkline->getAttribute('data');
-        $this->assertEquals([1, 3, 5], $data);
+        $this->assertEquals([[1, 3, 5]], $data);
     }
 
     /**