diff --git a/lib/pages/workflow.dart b/lib/pages/workflow.dart
index 5a8f04f..be0f6f1 100644
--- a/lib/pages/workflow.dart
+++ b/lib/pages/workflow.dart
@@ -87,15 +87,15 @@ final WorflowService _service = WorflowService();
     if (objAbs.topic == "compute" ) {
       var compute = objAbs as ComputeItem;
       if (compute.technology == 0) {
-        return Icon(FontAwesomeIcons.docker, size: 18);
+        return Icon(FontAwesomeIcons.docker, size: 16);
       } else if (compute.technology == 1) {
-        return Icon(FontAwesomeIcons.lifeRing, size: 18);
+        return Icon(FontAwesomeIcons.lifeRing, size: 16);
       } else if (compute.technology == 2) {
-        return Icon(FontAwesomeIcons.cubes, size: 18);
+        return Icon(FontAwesomeIcons.cubes, size: 16);
       } else if (compute.technology == 3) {
-        return Icon(FontAwesomeIcons.hardDrive, size: 18);
+        return Icon(FontAwesomeIcons.hardDrive, size: 16);
       } else if (compute.technology == 4) {
-        return Icon(FontAwesomeIcons.v, size: 18);
+        return Icon(FontAwesomeIcons.v, size: 16);
       }
     }
     return null;
@@ -105,15 +105,15 @@ final WorflowService _service = WorflowService();
     var objAbs = obj as AbstractItem?;
     if (objAbs == null) { return null; }
     if (objAbs.topic == "processing" ) {
-      return Icon(FontAwesomeIcons.gear) ;
+      return Icon(FontAwesomeIcons.gear, size: 16);
     } else if (objAbs.topic == "data" ) {
-      return Icon(FontAwesomeIcons.file);
+      return Icon(FontAwesomeIcons.file, size: 16);
     } else if (objAbs.topic == "storage" ) {
-      return Icon(FontAwesomeIcons.database);
+      return Icon(FontAwesomeIcons.database, size: 16);
     } else if (objAbs.topic == "compute" ) {
-      return Icon(FontAwesomeIcons.microchip);
+      return Icon(FontAwesomeIcons.microchip, size: 16);
     } else if (objAbs.topic == "workflows" ) {
-      return Icon(FontAwesomeIcons.diagramProject);
+      return Icon(FontAwesomeIcons.diagramProject, size: 16);
     }
     return null;
   }
@@ -290,6 +290,32 @@ final WorflowService _service = WorflowService();
     dash.infoItemWidget = getForms;
     dash.infoWidget = getDashInfoForms;
     dash.widthOffset = 50;
+    dash.arrowStyleRules = [
+      (dash) {
+        for (var arrow in dash.arrows) {
+          var from = dash.elements.firstWhere((element) => arrow.fromID.contains(element.id)).element;
+          var to = dash.elements.firstWhere((element) => arrow.toID.contains(element.id)).element;
+          if ((from is ProcessingItem && to is ComputeItem) || (to is ProcessingItem && from is ComputeItem)) {
+            arrow.params.color = Colors.orange;
+            arrow.params.dashSpace = 2;
+            arrow.params.dashWidth = 2;
+          } else if ((from is ProcessingItem && to is StorageItem) || (to is ProcessingItem && from is StorageItem)) {
+            arrow.params.color = redColor;
+            arrow.params.dashSpace = 2;
+            arrow.params.dashWidth = 2;
+          } else if ((from is ProcessingItem && to is DataItem) || (to is ProcessingItem && from is DataItem)) {
+            arrow.params.color = Colors.blue;
+            arrow.params.dashSpace = 2;
+            arrow.params.dashWidth = 2;
+          } else {
+            arrow.params.color = Colors.black;
+            arrow.params.dashSpace = 0;
+            arrow.params.dashWidth = 0;
+          }
+        }
+        return dash.arrows;
+      }
+    ];
     dash.saveRules = [
       (dash) {
         dash.error = null;
diff --git a/lib/widgets/forms/scheduler_forms.dart b/lib/widgets/forms/scheduler_forms.dart
index 668a963..8f69bd1 100644
--- a/lib/widgets/forms/scheduler_forms.dart
+++ b/lib/widgets/forms/scheduler_forms.dart
@@ -115,10 +115,10 @@ class SchedulerFormsWidgetState extends State<SchedulerFormsWidget> {
       if (end.isBefore(DateTime.now())) {
         // get difference between now and start
         delayed = end.difference(DateTime.now());
+        Future.delayed(delayed, () {
+          WorkflowFactory.key.currentState?.setState(() { });
+        });
       }
-      Future.delayed(delayed, () {
-        WorkflowFactory.key.currentState?.setState(() { });
-      });
     }
     List<GlobalKey<FormFieldState>> formKeys = [GlobalKey<FormFieldState>(), GlobalKey<FormFieldState>(), GlobalKey<FormFieldState>(), GlobalKey<FormFieldState>()];
     var shallow = ShallowTextInputWidget(
diff --git a/library/flutter_flow_chart/lib/src/dashboard.dart b/library/flutter_flow_chart/lib/src/dashboard.dart
index b01edab..5279fb4 100755
--- a/library/flutter_flow_chart/lib/src/dashboard.dart
+++ b/library/flutter_flow_chart/lib/src/dashboard.dart
@@ -61,6 +61,7 @@ class Dashboard extends ChangeNotifier {
   double widthOffset = 0;
   double heightOffset = 0;
   List<bool Function(Dashboard)> saveRules = [];
+  List<List<ArrowPainter> Function(Dashboard)> arrowStyleRules = [];
   
   String? error;
   
@@ -152,7 +153,9 @@ class Dashboard extends ChangeNotifier {
         map['dashboardSizeWidth'] as double? ?? 0,
         map['dashboardSizeHeight'] as double? ?? 0,
       );
-
+    for (var f in d.arrowStyleRules) {
+      d.arrows = f(d);
+    }
     if (map['gridBackgroundParams'] != null) {
       d.gridBackgroundParams = GridBackgroundParams.fromMap(
         map['gridBackgroundParams'] as Map<String, dynamic>,
@@ -179,6 +182,9 @@ class Dashboard extends ChangeNotifier {
           (x) => ArrowPainter.fromMap(x as Map<String, dynamic>),
         ),
       );
+    for (var f in arrowStyleRules) {
+      arrows = f(this);
+    }
     elements = List<FlowElement>.from(
         (map['elements'] as List<dynamic>).map<FlowElement>(
           (x) => FlowElement.fromMap(this, x as Map<String, dynamic>),
@@ -244,6 +250,9 @@ class Dashboard extends ChangeNotifier {
     for(var el in elements) {
       graph['elements'][el.id] = el.serialize();
     }
+    for (var f in arrowStyleRules) {
+      arrows = f(this);
+    }
     graph['arrows'] = arrows.map((e) => e.serialize()).toList();
     d["id"]=id;
     d["name"]=name;
@@ -322,12 +331,18 @@ class Dashboard extends ChangeNotifier {
 
   void addArrows(ArrowPainter f) {
     arrows.add(f);
+    for (var f in arrowStyleRules) {
+      arrows = f(this);
+    }
     addChange = true;
     saveDash(id);
   }
 
   void removeArrows(bool Function(ArrowPainter) f) {
     arrows.removeWhere((element) => f(element));
+    for (var f in arrowStyleRules) {
+      arrows = f(this);
+    }
     saveDash(id);
   }
 
diff --git a/library/flutter_flow_chart/lib/src/ui/draw_arrow.dart b/library/flutter_flow_chart/lib/src/ui/draw_arrow.dart
index 33a3410..22aea97 100755
--- a/library/flutter_flow_chart/lib/src/ui/draw_arrow.dart
+++ b/library/flutter_flow_chart/lib/src/ui/draw_arrow.dart
@@ -352,7 +352,7 @@ class DrawArrowState extends State<DrawArrow> {
             if ( widget.flow.widget.dashboard.arrows.where(
                   (element) => element.fromID == "${widget.srcElement.id}_${widget.index}").isEmpty) {
                 widget.flow.widget.dashboard.addArrows(painter); 
-                widget.flow.widget.dashboard.save!(widget.flow.widget.dashboard.id);
+                widget.flow.widget.dashboard.saveDash(widget.flow.widget.dashboard.id);
             } else {
               var i = widget.flow.widget.dashboard.arrows.indexWhere(
                   (element) => element.fromID == "${widget.srcElement.id}_${widget.index}");