I the green graph in the players profile showing the 300 last games, I think there is too much green.
I think that the vertical scale should reach from the minimum rating of the 300 last games, rather than the minimum rating of all the players games.
For example - look at the graph of User 51824. It is almost flat but the most of the green reaches all from 1190. It's way too much green in my taste.
But it's only a minor problem though...
There is also the reversed problem. Too much white - in some instances. Like the User 280756.
So I suggest that the diagrams top should be the maximum rating for the last 300 games and the bottom should (in analogy) the minimum rating for the last 300 games.
If you see too much white - you're not colorblind. 😕