diff --git a/README.md b/README.md
index 8aa3320c5..66b09e532 100644
--- a/README.md
+++ b/README.md
@@ -29,7 +29,7 @@
    <a href="https://apt.izzysoft.de/fdroid/index/apk/com.example.weathermaster"><img alt="GitHub" src="preview/download_Btn.png" height="80"/></a></div>
 <br>
 
-![app_thumbnail](preview/thumbnail_new_mat.png)
+![app_thumbnail](preview/thumbnail_mat.png)
 
 # 👁️ Screenshots
 
diff --git a/preview/thumbnail_mat.png b/preview/thumbnail_mat.png
new file mode 100644
index 000000000..792f1c256
Binary files /dev/null and b/preview/thumbnail_mat.png differ
diff --git a/preview/thumbnail_new_mat.png b/preview/thumbnail_new_mat.png
deleted file mode 100644
index 4bb85ef6e..000000000
Binary files a/preview/thumbnail_new_mat.png and /dev/null differ