enable cascade color and opacity for BasedButtonSprite

Author: dankmeme01

loader/src/ui/nodes/BasedButtonSprite.cpp

@@ -201,6 +201,9 @@ bool BasedButtonSprite::init(CCNode* ontop, BaseType type, int size, int color)
         this->addChild(m_onTop);
     }
 
+    this->setCascadeColorEnabled(true);
+    this->setCascadeOpacityEnabled(true);
+
     return true;
 }