diff --git a/backend/db/crud.py b/backend/db/crud.py
index c0b31deeb2425cf8965ac5eece72a9313d3f1eaa..0910e780699224a206f43b05adbec442f3ba9e48 100644
--- a/backend/db/crud.py
+++ b/backend/db/crud.py
@@ -35,10 +35,11 @@ def get_waiting_time(place: str, db: Session):
     return schemas.WaitingTime()
 
 
-## Define some utils function
+# Define some utils function
 def shift_time(t: time, delta: timedelta):
     return (datetime.combine(date(1, 1, 1), t) + delta).time()
 
+
 def add_slot(slots_list, start_time, end_time, function):
     average_waiting_time = function(start_time, end_time)
     if average_waiting_time:
diff --git a/frontend/public/favicon.ico b/frontend/public/favicon.ico
deleted file mode 100644
index bcd5dfd67cd0361b78123e95c2dd96031f27f743..0000000000000000000000000000000000000000
Binary files a/frontend/public/favicon.ico and /dev/null differ
diff --git a/frontend/public/index.html b/frontend/public/index.html
index aa069f27cbd9d53394428171c3989fd03db73c76..e4406637291776d5559c2c2781a9165bb5878747 100644
--- a/frontend/public/index.html
+++ b/frontend/public/index.html
@@ -2,19 +2,13 @@
 <html lang="en">
   <head>
     <meta charset="utf-8" />
-    <link rel="icon" href="%PUBLIC_URL%/favicon.ico" />
+    <link rel="icon" href="%PUBLIC_URL%/thumbnail_violet.png" />
     <meta name="viewport" content="width=device-width, initial-scale=1" />
     <meta name="theme-color" content="#000000" />
     <meta
       name="description"
-      content="Web site created using create-react-app"
+      content="Web site developed by ViaRézo"
     />
-    <link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
-    <!--
-      manifest.json provides metadata used when your web app is installed on a
-      user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
-    -->
-    <link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
     <!--
       Notice the use of %PUBLIC_URL% in the tags above.
       It will be replaced with the URL of the `public` folder during the build.
@@ -24,7 +18,7 @@
       work correctly both with client-side routing and a non-root public URL.
       Learn how to configure a non-root public URL by running `npm run build`.
     -->
-    <title>React App</title>
+    <title>Eatfast</title>
   </head>
   <body>
     <noscript>You need to enable JavaScript to run this app.</noscript>
diff --git a/frontend/public/logo192.png b/frontend/public/logo192.png
deleted file mode 100644
index fc44b0a3796c0e0a64c3d858ca038bd4570465d9..0000000000000000000000000000000000000000
Binary files a/frontend/public/logo192.png and /dev/null differ
diff --git a/frontend/public/logo512.png b/frontend/public/logo512.png
deleted file mode 100644
index a4e47a6545bc15971f8f63fba70e4013df88a664..0000000000000000000000000000000000000000
Binary files a/frontend/public/logo512.png and /dev/null differ
diff --git a/frontend/public/manifest.json b/frontend/public/manifest.json
deleted file mode 100644
index 080d6c77ac21bb2ef88a6992b2b73ad93daaca92..0000000000000000000000000000000000000000
--- a/frontend/public/manifest.json
+++ /dev/null
@@ -1,25 +0,0 @@
-{
-  "short_name": "React App",
-  "name": "Create React App Sample",
-  "icons": [
-    {
-      "src": "favicon.ico",
-      "sizes": "64x64 32x32 24x24 16x16",
-      "type": "image/x-icon"
-    },
-    {
-      "src": "logo192.png",
-      "type": "image/png",
-      "sizes": "192x192"
-    },
-    {
-      "src": "logo512.png",
-      "type": "image/png",
-      "sizes": "512x512"
-    }
-  ],
-  "start_url": ".",
-  "display": "standalone",
-  "theme_color": "#000000",
-  "background_color": "#ffffff"
-}
diff --git a/frontend/public/thumbnail_violet.png b/frontend/public/thumbnail_violet.png
new file mode 100644
index 0000000000000000000000000000000000000000..f2e889460366fe59740ffc3e3a3d4ac727a97a26
Binary files /dev/null and b/frontend/public/thumbnail_violet.png differ