Can I set KiTTY default codepage to UTF-8 instead of ISO-8859-1

encodingkittyputtysshutf-8

I always use UTF-8, but KiTTY always resets to ISO-8859-1 for new sessions, so I have to configure this every time. Can this be altered?

The problem was in LC_ settings in my system. It was set to:

LANG="cs_CZ"

which probably defaults to ISO-8859-2. After altering this to:

cat /etc/env.d/02locale
...
LANG="cs_CZ.UTF-8"
...

env-update && source /etc/profile
reboot # just to be sure

Everything is ok. CSV defaults to UTF-8.

In Thunderbird 78+:

Menu > Options > General > Language & Appearance > Advanced button > Text encoding