When you teleport to a block, it wants to teleport you to the middle of that block, thus the 5 at the end of the number in the message and the reason it's considered "too big", since that's half of a block past the intersection. It's a bit of an error, that should be fixed. Maybe rewording the message to be: "The number you have entered (<Insert number here>) is too big, it must be less than 30000000." would fix things.
If you look closely in the 117kB and 184kB pictures, you can see little dots that are off-color. It's mostly visible in the 184kB picture if you look towards the horizon on the water. The dots in that picture are dark green squares.
Will Thompson
When you teleport to a block, it wants to teleport you to the middle of that block, thus the 5 at the end of the number in the message and the reason it's considered "too big", since that's half of a block past the intersection. It's a bit of an error, that should be fixed. Maybe rewording the message to be: "The number you have entered (<Insert number here>) is too big, it must be less than 30000000." would fix things.