Chat settings are server based?

[QuadroTony]

interesting info

i login to the friend's account and looks like my chat settings was taken from the server

for example my friend using colors and size of the fonts, not default, and yes the imported to me too
also he using RUESO addon, im not
and when i login on his character from my PC i see this instead of
"Chat" on main tab

this supposed to be cyrillic letters if i will install RuESO