- séparation des taches faite et non,

- rapettisage de la taille des taches

lib/utils/todo_tile.dart

@@ -18,27 +18,28 @@ class ToDoTile extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return Padding(
-      padding: const EdgeInsets.fromLTRB(25.0, 25, 25, 0),
+      padding: const EdgeInsets.fromLTRB(15.0, 15, 15, 0),
       child: Slidable(
         endActionPane: ActionPane(
-          motion: StretchMotion(),
+          motion: const StretchMotion(),
           children: [
             SlidableAction(
               onPressed: deleteFunction,
               icon: Icons.delete,
-              backgroundColor: const Color.fromARGB(255, 249, 137, 135),
+              backgroundColor: Color.fromARGB(255, 249, 137, 135),
               borderRadius: BorderRadius.circular(12),
             )
           ],
         ),
         child: Container(
-          padding: EdgeInsets.all(24.0),
+          padding: const EdgeInsets.all(10.0),
           child: Row(
             mainAxisAlignment: MainAxisAlignment.spaceBetween,
             children: [
               Text(
                 taskName,
                 style: TextStyle(
+                    color: Colors.white,
                     decoration: taskCompleted
                         ? TextDecoration.lineThrough
                         : TextDecoration.none),
@@ -46,12 +47,19 @@ class ToDoTile extends StatelessWidget {
               Checkbox(
                 value: taskCompleted,
                 onChanged: onChanged,
-                activeColor: Colors.redAccent,
+                side:
+                    MaterialStateBorderSide.resolveWith((states) => BorderSide(
+                          width: 2,
+                          color: Colors.white,
+                        )),
+                focusColor: Colors.white,
+                checkColor: Colors.white,
+                activeColor: taskCompleted ? Colors.grey : Colors.redAccent,
               )
             ],
           ),
           decoration: BoxDecoration(
-            color: Theme.of(context).primaryColor,
+            color: taskCompleted ? Colors.grey : Theme.of(context).primaryColor,
             borderRadius: BorderRadius.circular(10.0),
           ),
         ),