added new tragets... fixed some issues.

lib/screens/book_screen.dart

@@ -227,7 +227,7 @@ Color _getColorFromName(String colorName) {
         await file.delete();
         _loadTargetDataFiles(); // Refresh after deleting the file
       } catch (e) {
-        ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text("Error deleting file: $e")));
+        debugPrint("Error deleting file: $e");
       }
     }
   }
@@ -380,7 +380,7 @@ Future<void> _renameFolder(String oldFolderName) async {
                     child: Container(
                       width: double.infinity,
                       decoration: BoxDecoration(
-                        color: isTournament ? _bulletColor.withOpacity(0.2) : Colors.grey[850],
+                        color: isTournament ? _bulletColor.withValues(alpha: 0.2) : Colors.grey[850],
                         borderRadius: BorderRadius.circular(12),
                         border: Border.all(
                           color: isTournament ? _bulletColor : Colors.grey[700]!,
@@ -469,9 +469,7 @@ Future<void> _renameFolder(String oldFolderName) async {
 
     if (targetFolderName != oldFolderName) {
       if (await newFolderPath.exists()) {
-        ScaffoldMessenger.of(context).showSnackBar(
-          SnackBar(content: Text('A folder named "$targetFolderName" already exists.')),
-        );
+        debugPrint('A folder named "$targetFolderName" already exists.');
         return;
       } else {
         await oldFolderPath.rename(newFolderPath.path);
@@ -522,16 +520,8 @@ Future<void> _renameFolder(String oldFolderName) async {
       }
 
       _loadTargetDataFiles(); // Refresh file/folder list
-
-      ScaffoldMessenger.of(context).showSnackBar(
-        SnackBar(
-          content: Text('Folder "$folderName" deleted successfully.'),
-        ),
-      );
     } catch (e) {
-      ScaffoldMessenger.of(context).showSnackBar(
-        SnackBar(content: Text("Error deleting folder: $e")),
-      );
+      debugPrint("Error deleting folder: $e");
     }
   }
 }