Fix back button color not getting set in ContextualMenu

android/app/src/main/java/com/reactnativenavigation/params/ContextualMenuParams.java

 
     public void setButtonsColor(StyleParams.Color buttonColor) {
         for (ContextualMenuButtonParams button : buttons) {
-            button.setColorFromScreenStyle(buttonColor);
+            button.color = buttonColor;
         }
-        leftButton.setColorFromScreenStyle(buttonColor);
+        leftButton.color = buttonColor;
     }
 }

android/app/src/main/java/com/reactnativenavigation/screens/Screen.java

     }
 
     public void showContextualMenu(ContextualMenuParams params, Callback onButtonClicked) {
-        params.setButtonsColor(styleParams.contextualMenuButtonsColor);
-        topBar.showContextualMenu(params, styleParams.contextualMenuBackgroundColor, onButtonClicked);
+        topBar.showContextualMenu(params, styleParams, onButtonClicked);
         setStatusBarColor(styleParams.contextualMenuStatusBarColor);
     }
 

android/app/src/main/java/com/reactnativenavigation/views/ContextualMenu.java

 import java.util.List;
 
 public class ContextualMenu extends TitleBar implements LeftButtonOnClickListener, ContextualMenuButton.ContextualButtonClickListener {
+    private ContextualMenuParams params;
     private Callback onButtonClicked;
     private final String navigatorEventId;
 
-    public ContextualMenu(Context context, ContextualMenuParams params, StyleParams.Color contextualMenuBackgroundColor, Callback onButtonClicked) {
+    public ContextualMenu(Context context, ContextualMenuParams params, StyleParams styleParams, Callback onButtonClicked) {
         super(context);
+        this.params = params;
         this.onButtonClicked = onButtonClicked;
         navigatorEventId = params.navigationParams.navigatorEventId;
-        setStyle(contextualMenuBackgroundColor);
-        setButtons(params.buttons, params.leftButton);
+        setStyle(styleParams);
+        setButtons();
     }
 
-    public void setStyle(StyleParams.Color contextualMenuBackgroundColor) {
-        if (contextualMenuBackgroundColor.hasColor()) {
-            setBackgroundColor(contextualMenuBackgroundColor.getColor());
+    public void setStyle(StyleParams styleParams) {
+        params.setButtonsColor(styleParams.contextualMenuButtonsColor);
+        if (styleParams.contextualMenuBackgroundColor.hasColor()) {
+            setBackgroundColor(styleParams.contextualMenuBackgroundColor.getColor());
         }
     }
 
-    public void setButtons(List<ContextualMenuButtonParams> buttons, TitleBarLeftButtonParams leftButton) {
-        addButtonsToContextualMenu(buttons, getMenu());
-        setBackButton(leftButton);
+    public void setButtons() {
+        addButtonsToContextualMenu(params.buttons, getMenu());
+        setBackButton(params.leftButton);
     }
 
     private void setBackButton(TitleBarLeftButtonParams leftButton) {

android/app/src/main/java/com/reactnativenavigation/views/TopBar.java

         topTabs.setSelectedTabIndicatorStyle(style);
     }
 
-    public void showContextualMenu(final ContextualMenuParams params, StyleParams.Color contextualMenuBackgroundColor, Callback onButtonClicked) {
-        contextualMenu = new ContextualMenu(getContext(), params, contextualMenuBackgroundColor, onButtonClicked);
+    public void showContextualMenu(final ContextualMenuParams params, StyleParams styleParams, Callback onButtonClicked) {
+        contextualMenu = new ContextualMenu(getContext(), params, styleParams, onButtonClicked);
         titleBarAndContextualMenuContainer.addView(contextualMenu, new ViewGroup.LayoutParams(MATCH_PARENT, WRAP_CONTENT));
         ViewUtils.runOnPreDraw(contextualMenu, new Runnable() {
             @Override