[FIX] Null value on the bools

lib/src/Buttons/buttons.astromic.dart

@@ -68,11 +68,11 @@ class AstromicButtons {
         onTap: onTap,
         onHold: onHold,
         //
-        isEnabled: isEnabled,
-        withFeedback: withFeedback,
-        withHighlightChange: withHighlightChange,
+        isEnabled: isEnabled ?? true,
+        withFeedback: withFeedback ?? true,
+        withHighlightChange: withHighlightChange ?? true,
         //
-        isCircular: isCircular,
+        isCircular: isCircular ?? true,
         splashFactory: splashFactory,
         style: style,
         //

lib/src/Buttons/src/icon_button.dart

@@ -25,12 +25,12 @@ class AstromicIconButton extends StatefulWidget {
   final void Function(VoidCallback start, VoidCallback stop)? onTap;
   final Function(VoidCallback start, VoidCallback stop)? onHold;
   //s1 -- Configurations
-  final bool? isEnabled;
-  final bool? withFeedback;
-  final bool? withHighlightChange;
+  final bool isEnabled;
+  final bool withFeedback;
+  final bool withHighlightChange;
   //s1 -- Style
   final InteractiveInkFeatureFactory? splashFactory;
-  final bool? isCircular;
+  final bool isCircular;
   final AstromicButtonStyle Function(bool isEnabled, bool isHighlighted, bool isLoading)? style;
   //s1 -- Content
   final Widget? loadingContent;
@@ -43,12 +43,12 @@ class AstromicIconButton extends StatefulWidget {
     this.onTap,
     this.onHold,
     //
-    this.isEnabled = true,
-    this.withFeedback = true,
-    this.withHighlightChange = true,
+    required this.isEnabled,
+    required this.withFeedback,
+    required this.withHighlightChange,
     //s1 -- Style
     this.splashFactory,
-    this.isCircular = true,
+    required this.isCircular,
     this.style,
     //s1 -- Content
     this.loadingContent,
@@ -101,7 +101,7 @@ class _AstromicIconButtonState extends State<AstromicIconButton> {
     //s1 -Widgets
     //-----
     Widget baseChild = AstromicButtonBase(
-      isEnabled: widget.isEnabled!,
+      isEnabled: widget.isEnabled,
       withFeedback: widget.withFeedback!,
       withHighlightChange: widget.withHighlightChange!,
       isFullWidth: false,