🎨 Style buttons

app/src/main/res/layout/activity_quiz.xml

@@ -10,10 +10,10 @@
         android:layout_gravity="center"
         android:gravity="center"
         android:orientation="vertical"
+        app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintLeft_toLeftOf="parent"
         app:layout_constraintRight_toRightOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
-        app:layout_constraintBottom_toBottomOf="parent">
+        app:layout_constraintTop_toTopOf="parent">
 
         <TextView
             android:id="@+id/TVQuestion"
@@ -30,25 +30,25 @@
             android:layout_gravity="center"
             android:layout_weight="1"
             android:gravity="center"
-            android:orientation="horizontal"
-            android:background="#0ff">
+            android:orientation="horizontal">
 
             <Button
                 android:id="@+id/btnTrue"
                 android:layout_width="100dp"
                 android:layout_height="50dp"
                 android:layout_margin="10dp"
-                android:text="@string/true_btn"
-                style="?android:attr/buttonBarButtonStyle" />
+                android:backgroundTint="#888"
+                android:textColor="@color/black"
+                android:text="@string/true_btn" />
 
             <Button
                 android:id="@+id/btnFalse"
                 android:layout_width="100dp"
                 android:layout_height="50dp"
                 android:layout_margin="10dp"
-                android:text="@string/false_btn"
-                app:layout_constraintLeft_toRightOf="@+id/btnTrue"
-                style="?android:attr/buttonBarButtonStyle" />
+                android:backgroundTint="#888"
+                android:textColor="@color/black"
+                android:text="@string/false_btn" />
 
         </LinearLayout>