I would really like to see kata descriptions when browsing the Library for unsolved Katas to train on. They are displayed on the dashboard for the next suggested kata, so why not include them on the kata's detail page.

On the Home page the suggested next Kata will sometimes be a kata you already completed, which is fine. It would be helpful to have a check mark next to the kata if you have already completed it (like there are when you look at kata's in the library) to make it easier to see that you have already completed it.

Allow customization of the color scheme. Black backgrounds remind me of black belts, but I am a white belt, can I have a white background?