change refresh Icon size from 25 to 20

Frontend/patient_manager/lib/mih_packages/patient_profile/patient_manager.dart

@@ -101,7 +101,7 @@ class _PatientManagerState extends State<PatientManager> {
             style: TextStyle(fontSize: 25, fontWeight: FontWeight.bold),
           ),
           IconButton(
-            iconSize: 25,
+            iconSize: 20,
             icon: const Icon(
               Icons.refresh,
             ),
@@ -504,7 +504,10 @@ class _PatientManagerState extends State<PatientManager> {
     return MIHHeader(
       headerAlignment: MainAxisAlignment.end,
       headerItems: [
-        IconButton(
+        //============ Waiting Room ================
+        Visibility(
+          visible: _selectedIndex != 0,
+          child: IconButton(
             onPressed: () {
               setState(() {
                 _selectedIndex = 0;
@@ -515,7 +518,25 @@ class _PatientManagerState extends State<PatientManager> {
               size: 35,
             ),
           ),
-        IconButton(
+        ),
+        Visibility(
+          visible: _selectedIndex == 0,
+          child: IconButton.filled(
+            onPressed: () {
+              setState(() {
+                _selectedIndex = 0;
+              });
+            },
+            icon: const Icon(
+              Icons.people,
+              size: 35,
+            ),
+          ),
+        ),
+        //============ My Patient List ================
+        Visibility(
+          visible: _selectedIndex != 1,
+          child: IconButton(
             onPressed: () {
               setState(() {
                 _selectedIndex = 1;
@@ -526,7 +547,25 @@ class _PatientManagerState extends State<PatientManager> {
               size: 35,
             ),
           ),
-        IconButton(
+        ),
+        Visibility(
+          visible: _selectedIndex == 1,
+          child: IconButton.filled(
+            onPressed: () {
+              setState(() {
+                _selectedIndex = 1;
+              });
+            },
+            icon: const Icon(
+              Icons.check_box_outlined,
+              size: 35,
+            ),
+          ),
+        ),
+        //============ Patient Lookup ================
+        Visibility(
+          visible: _selectedIndex != 2,
+          child: IconButton(
             onPressed: () {
               setState(() {
                 _selectedIndex = 2;
@@ -537,6 +576,21 @@ class _PatientManagerState extends State<PatientManager> {
               size: 35,
             ),
           ),
+        ),
+        Visibility(
+          visible: _selectedIndex == 2,
+          child: IconButton.filled(
+            onPressed: () {
+              setState(() {
+                _selectedIndex = 2;
+              });
+            },
+            icon: const Icon(
+              Icons.search,
+              size: 35,
+            ),
+          ),
+        ),
       ],
     );
   }