add: box on marker press

app/lib/pages/consts.dart

@@ -24,6 +24,7 @@ final chartTextStyle = GoogleFonts.dmSans(fontSize: 14, color: textColor);
 
 // Colors
 const darkBlue = Color(0xFF00B4D8);
+const darkestBlue = Color(0xFF03045E);
 const lightBlue = Color(0xFFCAF0F8);
 const superLightBlue = Color(0xFFCAF0F8);
 const barBlue = Color(0xFF0077B6);
\ No newline at end of file

app/lib/pages/default_page.dart

@@ -73,19 +73,27 @@ class _DefaultPageState extends State<DefaultPage> {
 
   @override
   Widget build(BuildContext context) {
-    return Scaffold(
-      backgroundColor: darkBlue,
-      appBar: AppBar(
-        title: Text(
-          'IceMap',
-          style: appTitleStyle,
+    return MaterialApp(
+      home: Container(
+        decoration: const BoxDecoration(
+          gradient: LinearGradient(
+            begin: Alignment.topCenter,
+            end: Alignment.bottomCenter,
+            colors: [darkBlue, darkestBlue],
+          ),
         ),
+        child: Scaffold(
+          backgroundColor: Colors.transparent,
+          appBar: AppBar(
+            title: Text('IceMap'),
           ),
           body: ListView(
             children: [
               MapContainerWidget(markerList: markerList),
             ],
           ),
+        ),
+      ),
     );
   }
 }
\ No newline at end of file

app/lib/pages/widgets/map_widget.dart

@@ -80,6 +80,41 @@ class _MapContainerWidgetState extends State<MapContainerWidget> {
                         );
                       }).toList(),
                     ),
+                    if (selectedMarker != null) // Quick chart on marker press
+                      Positioned(
+                        bottom: 10,
+                        right: 10,
+                        child: ClipRRect(
+                          borderRadius: BorderRadius.circular(10),
+                          child: Container(
+                            width: (screenWidth * boxWidth)/2.3,
+                            height: (screenWidth * boxWidth)/2.3,
+                            color: darkBlue,
+                            child: Stack(
+                              children: [
+                                Center(
+                                  child: Text(
+                                    'Placeholder',
+                                    style: textStyle,
+                                  ),
+                                ),
+                                Positioned(
+                                  top: 5,
+                                  right: 5,
+                                  child: GestureDetector(
+                                    onTap: () {
+                                      setState(() {
+                                        selectedMarker = null; // Clear the selected marker
+                                      });
+                                    },
+                                    child: const Icon(Icons.close),
+                                  ),
+                                ),
+                              ],
+                            ),
+                          ),
+                        ),
+                      ),
                   ],
                 ),
               ),