This looks like it just might not fit the particular resolution of this phone. There’s no way for us to verify the game at every resolution on every phone, unfortunately, so some will probably always be a bit off.
In the future we’ll be doing a general cleanup pass for mobile though and this will probably be one of the things we look at, hopefully within a month or two, but it depends on how far along with other things we are. Thanks for the report though, we’ll make sure we take a look at this!