diff --git a/CHANGELOG.md b/CHANGELOG.md
index ecb4049..8d2a351 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # ChangeLog
 
+## 0.2.0 (2020-01-05)
+
+- 加入灰度渐变特效
+
 ## 0.1.0 (2020-01-01)
 
 - 加入马赛克特效
diff --git a/README.md b/README.md
index 335f25a..9ace6d6 100755
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # Cocos Creator Shader Effect Demo
 
-[![](https://img.shields.io/badge/Release-0.1.0-green.svg)](CHANGELOG.md)
+[![](https://img.shields.io/badge/Release-0.2.0-green.svg)](CHANGELOG.md)
 [![](https://img.shields.io/badge/license-MIT-green.svg)](LICENSE)
 [![](https://img.shields.io/badge/Support-Cocos%20Creator%20v2.2.1-orange.svg)](http://www.cocos.com/creator)
 
@@ -36,6 +36,10 @@
 
 ![](static/effects/2d-sprite-old-photo.gif)
 
+### 灰度渐变（实现原理同老照片一样，可参考[老照片实现原理文章](https://www.jianshu.com/p/711a54ff2fa0)）
+
+![](static/effects/2d-sprite-gray.gif)
+
 ### 外发光（完善中...）
 
 ### 外描边（完善中...）
diff --git a/static/effects/2d-sprite-gray.gif b/static/effects/2d-sprite-gray.gif
index 0f4657e..bd40c11 100644
Binary files a/static/effects/2d-sprite-gray.gif and b/static/effects/2d-sprite-gray.gif differ