added normal state to buttons

Sources/iOS/NavigationController.swift

@@ -110,7 +110,8 @@ public class NavigationController : UINavigationController, UIGestureRecognizerD
 		if let v: NavigationBar = navigationBar as? NavigationBar {
 			let backButton: IconButton = IconButton()
 			backButton.pulseColor = Color.white
-			backButton.setImage(v.backButtonImage, for: .highlighted)
+            backButton.setImage(v.backButtonImage, for: .normal)
+            backButton.setImage(v.backButtonImage, for: .highlighted)
 			backButton.addTarget(self, action: #selector(handleBackButton), for: .touchUpInside)
 			
 			if var c: Array<UIControl> = item.leftControls {

Sources/iOS/SearchBar.swift

@@ -163,7 +163,8 @@ public class SearchBar : BarView {
 		clearButton = IconButton()
 		clearButton.contentEdgeInsets = UIEdgeInsets.zero
 		clearButton.tintColor = placeholderColor
-		clearButton.setImage(image, for: .highlighted)
+        clearButton.setImage(image, for: .normal)
+        clearButton.setImage(image, for: .highlighted)
 		clearButtonAutoHandleEnabled = true
 		textField.clearButtonMode = .never
 		textField.rightViewMode = .whileEditing

Sources/iOS/TextField.swift

@@ -230,7 +230,8 @@ public class TextField: UITextField {
 					clearIconButton!.contentEdgeInsets = UIEdgeInsets.zero
 					clearIconButton!.pulseAnimation = .center
 					clearIconButton!.tintColor = placeholderColor
-					clearIconButton!.setImage(image, for: .highlighted)
+					clearIconButton!.setImage(image, for: .normal)
+                    clearIconButton!.setImage(image, for: .highlighted)
 					clearButtonMode = .never
 					rightViewMode = .whileEditing
 					rightView = clearIconButton
@@ -266,7 +267,8 @@ public class TextField: UITextField {
 					visibilityIconButton!.contentEdgeInsets = UIEdgeInsets.zero
 					visibilityIconButton!.pulseAnimation = .center
 					visibilityIconButton!.tintColor = placeholderColor
-					visibilityIconButton!.setImage(image, for: .highlighted)
+                    visibilityIconButton!.setImage(image, for: .normal)
+                    visibilityIconButton!.setImage(image, for: .highlighted)
 					visibilityIconButton!.tintColor = placeholderColor.withAlphaComponent(isSecureTextEntry ? 0.38 : 0.54)
 					isSecureTextEntry = true
 					clearButtonMode = .never