diff --git a/apps/theming/css/default.css b/apps/theming/css/default.css
index 39eb9391009eb..eb7cde0e15b1a 100644
--- a/apps/theming/css/default.css
+++ b/apps/theming/css/default.css
@@ -5,7 +5,7 @@
   --color-main-background-rgb: 255,255,255;
   --color-main-background-translucent: rgba(var(--color-main-background-rgb), .97);
   --color-main-background-blur: rgba(var(--color-main-background-rgb), .8);
-  --filter-background-blur: blur(25px);
+  --filter-background-blur: blur(50px);
   --gradient-main-background: var(--color-main-background) 0%, var(--color-main-background-translucent) 85%, transparent 100%;
   --color-background-hover: #f5f5f5;
   /** Can be used e.g. to colorize selected table rows */
diff --git a/apps/theming/lib/Themes/DefaultTheme.php b/apps/theming/lib/Themes/DefaultTheme.php
index 38b20a14e98aa..798b08dd91810 100644
--- a/apps/theming/lib/Themes/DefaultTheme.php
+++ b/apps/theming/lib/Themes/DefaultTheme.php
@@ -125,7 +125,7 @@ public function getCSSVariables(): array {
 			'--color-main-background-rgb' => $colorMainBackgroundRGB,
 			'--color-main-background-translucent' => 'rgba(var(--color-main-background-rgb), .97)',
 			'--color-main-background-blur' => 'rgba(var(--color-main-background-rgb), .8)',
-			'--filter-background-blur' => $workingBlur ? 'blur(25px)' : 'none',
+			'--filter-background-blur' => $workingBlur ? 'blur(50px)' : 'none',
 
 			// to use like this: background-image: linear-gradient(0, var('--gradient-main-background));
 			'--gradient-main-background' => 'var(--color-main-background) 0%, var(--color-main-background-translucent) 85%, transparent 100%',