Rewritten version of JstChat.

usage

additional parameters:

sb: how many backgrounds will appear
font_size: font size
background: your background
border: border size in pixels

or use these links

for default style: https://justririll.github.io/JstChat2/#/chat?channel=YOURCHANNEL

no background style: https://justririll.github.io/JstChat2/#/chat?channel=YOURCHANNEL&background=transparent&border=0