diff --git a/src/config.rs b/src/config.rs
index c443933..f0dab69 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -1,5 +1,5 @@
 //! Configuration module
-//! 
+//!
 //! Command line arguments and runtime configuration
 
 use anyhow::Result;
@@ -19,16 +19,30 @@ pub struct Config {
     #[arg(short = 'y', long = "yolo", help = "YOLO JSON file path")]
     pub yolo: Option<PathBuf>,
 
-    #[arg(short = 'w', long = "width", default_value = "1280", help = "Window width")]
+    #[arg(
+        short = 'w',
+        long = "width",
+        default_value = "1280",
+        help = "Window width"
+    )]
     pub width: u32,
 
-    #[arg(short = 'h', long = "height", default_value = "720", help = "Window height")]
+    #[arg(
+        short = 'h',
+        long = "height",
+        default_value = "720",
+        help = "Window height"
+    )]
     pub height: u32,
 
     #[arg(long = "fullscreen", help = "Start in fullscreen mode")]
     pub fullscreen: bool,
 
-    #[arg(long = "locale", default_value = "en", help = "UI language (en, zh-TW, etc.)")]
+    #[arg(
+        long = "locale",
+        default_value = "en",
+        help = "UI language (en, zh-TW, etc.)"
+    )]
     pub locale: String,
 }