Update FredOS-Gaming.nix

hosts/FredOS-Gaming.nix

@@ -31,10 +31,52 @@
       script = ''
         STEAM_DIR="$HOME/.local/share/Steam"
         DESKTOP_DIR="$HOME/.local/share/applications"
+        ICON_DIR="$HOME/.local/share/icons/hicolor"
         
         # Wait a bit for Steam to create desktop files
         sleep 5
         
+        # Create icon theme directories
+        for size in 32x32 48x48 64x64 128x128 256x256; do
+            mkdir -p "$ICON_DIR/$size/apps"
+        done
+        
+        # Create index.theme if it doesn't exist
+        if [ ! -f "$ICON_DIR/index.theme" ]; then
+            cat > "$ICON_DIR/index.theme" << 'EOF'
+        [Icon Theme]
+        Name=Hicolor
+        Comment=Fallback icon theme
+        Hidden=true
+        Directories=32x32/apps,48x48/apps,64x64/apps,128x128/apps,256x256/apps
+        
+        [32x32/apps]
+        Size=32
+        Context=Applications
+        Type=Threshold
+        
+        [48x48/apps]
+        Size=48
+        Context=Applications
+        Type=Threshold
+        
+        [64x64/apps]
+        Size=64
+        Context=Applications
+        Type=Threshold
+        
+        [128x128/apps]
+        Size=128
+        Context=Applications
+        Type=Threshold
+        
+        [256x256/apps]
+        Size=256
+        Context=Applications
+        Type=Threshold
+        EOF
+        fi
+        
         # Search all desktop files for steam_icon references
         ${pkgs.gnugrep}/bin/grep -l "Icon=steam_icon_" "$DESKTOP_DIR"/*.desktop 2>/dev/null | while read desktop_file; do
             # Extract the app_id from the Icon line
@@ -44,10 +86,23 @@
             icon_file=$(find "$STEAM_DIR/appcache/librarycache/$app_id" -name "*.jpg" 2>/dev/null | head -n 1)
             
             if [ -f "$icon_file" ]; then
-                ${pkgs.gnused}/bin/sed -i "s|Icon=steam_icon_$app_id|Icon=$icon_file|" "$desktop_file"
-                echo "Fixed icon for $(basename "$desktop_file"): App ID $app_id"
+                # Copy icon to all sizes for better quality
+                for size in 32x32 48x48 64x64 128x128 256x256; do
+                    cp "$icon_file" "$ICON_DIR/$size/apps/steam_icon_$app_id.png"
+                done
+                
+                echo "Copied icons for App ID $app_id"
+                
+                # Add StartupWMClass if not present
+                if ! ${pkgs.gnugrep}/bin/grep -q "StartupWMClass" "$desktop_file"; then
+                    echo "StartupWMClass=steam_app_$app_id" >> "$desktop_file"
+                    echo "Added StartupWMClass for $(basename "$desktop_file")"
+                fi
             fi
         done
+        
+        # Update icon cache
+        ${pkgs.gtk3}/bin/gtk-update-icon-cache -f "$ICON_DIR" 2>/dev/null || true
       '';
     };