diff --git a/assets/wechat/main.jpg b/assets/wechat/main.jpg
index c0b36e52d..090ef29ec 100644
Binary files a/assets/wechat/main.jpg and b/assets/wechat/main.jpg differ
diff --git a/assets/wechat/npu.jpg b/assets/wechat/npu.jpg
index 36e8622cb..a10cb9005 100644
Binary files a/assets/wechat/npu.jpg and b/assets/wechat/npu.jpg differ