Unclear menu icons

I expected this dictionary application because it was by Longman. But when I downloaded it and started using, my expectation was suddenly changed to disappointment. Its menu icons such as "Dictionary" "Favorites" "Search" especially "History"!! are very unclear. In fact, you can find it now in the above screenshots. It really disappointed me. If you want to use standard designed application, I recommend you to choose another dictionary.

gooddesignedapps about Longman Advanced American Dictionary (with audio), v1.4.1