I'm a native Japanese speaker and thought I would try out the nihongo master site on a whim. I'm currently in hiragana, however I have noticed some issues with the translations. For example colours such as red and blue are listed as あかい and あおい, but these would be termed adjectives to describe something as red or blue. The correct terms should be あか and あお. Anyone with me here, or am I talking to a brick wall?