Update app.py

app.py

@@ -13,7 +13,7 @@ def get_img_as_base64(file):
 page_bg_img = f"""
 <style>
 [data-testid="stAppViewContainer"] > .main {{
-background-image: url("https://analyse.sente-gmbh.de/wp-content/uploads/2020/08/iStock-588615942_super-scaled.jpg");
+background-image: url("https://catherineasquithgallery.com/uploads/posts/2021-02/1614374202_41-p-fon-tekhnologii-svetlii-53.jpg");
 background-size: 120%;
 background-position: top left;
 background-repeat: no-repeat;
@@ -21,7 +21,7 @@ background-attachment: local;
 }}
 
 [data-testid="stSidebar"] > div:first-child {{
-background-image: url("https://kartinkin.net/uploads/posts/2022-12/1670240725_63-kartinkin-net-p-kartinki-neiroseti-instagram-69.jpg");
+background-image: url("https://kartinkin.net/uploads/posts/2022-01/1643325727_14-kartinkin-net-p-pattern-neiroset-krasivie-16.jpg");
 background-size: 115%;
 background-position: center; 
 background-repeat: no-repeat;