Color animations: more uniform across NWidgets

Widgets/NCheckbox.qml

@@ -37,6 +37,18 @@ RowLayout {
     border.color: root.checked ? root.activeColor : Color.mOutline
     border.width: Math.max(1, Style.borderM * scaling)
 
+    Behavior on color {
+      ColorAnimation {
+        duration: Style.animationNormal
+      }
+    }
+
+    Behavior on border.color {
+      ColorAnimation {
+        duration: Style.animationNormal
+      }
+    }
+
     NIcon {
       visible: root.checked
       anchors.centerIn: parent
@@ -59,16 +71,5 @@ RowLayout {
       }
       onClicked: root.toggled(!root.checked)
     }
-
-    Behavior on color {
-      ColorAnimation {
-        duration: Style.animationFast
-      }
-    }
-    Behavior on border.color {
-      ColorAnimation {
-        duration: Style.animationFast
-      }
-    }
   }
 }