Style fab and actions

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

 public class FabActionParams {
     public String id;
     public Drawable icon;
+    public StyleParams.Color backgroundColor;
 }

android/app/src/main/java/com/reactnativenavigation/params/parsers/FabActionParamsParser.java

 import android.os.Bundle;
 
 import com.reactnativenavigation.params.FabActionParams;
+import com.reactnativenavigation.params.StyleParams;
 import com.reactnativenavigation.react.ImageLoader;
 
 public class FabActionParamsParser extends Parser {
         FabActionParams fabActionParams = new FabActionParams();
         fabActionParams.id = params.getString("id");
         fabActionParams.icon = ImageLoader.loadImage(params.getString("icon"));
+        fabActionParams.backgroundColor = StyleParams.Color.parse(params.getString("backgroundColor"));
         return fabActionParams;
     }
 }

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

 
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
+import android.content.res.ColorStateList;
 import android.graphics.drawable.Drawable;
 import android.support.annotation.FloatRange;
 import android.support.annotation.NonNull;
 import android.support.design.widget.FloatingActionButton;
 import android.view.Gravity;
 import android.view.View;
-import android.view.ViewGroup;
 
 import com.reactnativenavigation.params.FabActionParams;
 import com.reactnativenavigation.params.FabParams;
 
 import java.util.ArrayList;
 
+import static android.view.ViewGroup.LayoutParams.WRAP_CONTENT;
+
 public class FloatingActionButtonCoordinator {
 
     private static final int INITIAL_EXPENDED_FAB_ROTATION = -90;
     }
 
     private CoordinatorLayout.LayoutParams createFabLayoutParams() {
-        final CoordinatorLayout.LayoutParams lp = new CoordinatorLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
+        final CoordinatorLayout.LayoutParams lp = new CoordinatorLayout.LayoutParams(WRAP_CONTENT, WRAP_CONTENT);
         lp.gravity = Gravity.RIGHT | Gravity.BOTTOM;
         lp.bottomMargin = margin;
         lp.rightMargin = margin;
     }
 
     private void setStyle() {
-
+        collapsedFab.setBackgroundTintList(ColorStateList.valueOf(params.backgroundColor.getColor()));
+        expendedFab.setBackgroundTintList(ColorStateList.valueOf(params.backgroundColor.getColor()));
     }
 
     public void show() {
         FabActionParams actionParams = params.actions.get(index);
         FloatingActionButton action = createFab(actionParams.icon);
         action.setLayoutParams(createActionLayoutParams(index));
-     //   action.setAlpha(0);
+        if (actionParams.backgroundColor.hasColor()) {
+            action.setBackgroundTintList(ColorStateList.valueOf(actionParams.backgroundColor.getColor()));
+        }
+        action.setSize(FloatingActionButton.SIZE_MINI);
         return action;
     }
 
     @NonNull
     private CoordinatorLayout.LayoutParams createActionLayoutParams(int actionIndex) {
-        CoordinatorLayout.LayoutParams lp = new CoordinatorLayout.LayoutParams(actionSize, actionSize);
+        CoordinatorLayout.LayoutParams lp = new CoordinatorLayout.LayoutParams(WRAP_CONTENT, WRAP_CONTENT);
         lp.setAnchorId(expendedFab.getId());
         lp.anchorGravity = Gravity.CENTER_HORIZONTAL;
         lp.setBehavior(new ActionBehaviour(expendedFab, (actionIndex + 1) * (actionSize + margin / 2)));