I've fixed some places where I was interested.
I think that the script is slightly faster as it has made the script move after the page loading is complete.
Also, there was a problem of garbling when multibyte characters were included in the signboard. This is simply a missing encoding specification.
Probably, if you make pngcrush after generating PNG with mcpe_viz it seems to be possible a little faster.
I've fixed some places where I was interested. I think that the script is slightly faster as it has made the script move after the page loading is complete.
Also, there was a problem of garbling when multibyte characters were included in the signboard. This is simply a missing encoding specification.
Probably, if you make pngcrush after generating PNG with mcpe_viz it seems to be possible a little faster.