Just to explain the whole thing:
- At 25 posts you get a white box.
- Every 25 you get one, until a maximum of 7.
- At 200 posts (25x8) you get a yellow box.
- Every 200 you get one, until a maximum of 7.
- At 1600 posts (200x8) you get a red box.
- Every 1600 you get one, until a maximum of 7.
- If the fourth color is enabled, at 12800 posts (1600x8) you get a box of another color (don't know what it is, each board has its own settings)
- Every 12800 you get one, until a maximum of 7.