Kitty Image preview doesn't works inside tmux session

[lazysegtree]

Originally posted by @vitorf7 in #671

Hi, I am using superfile 1.4.0 and the image still show pixelated even on ghostty terminal with kitty protocol installed. I think I found the reason for it at least in my case.

This is mainly because I use tmux and the $TERM_PROGRAM is tmux while in a tmux session. If I close it all it is ghostty and it works correctly, but inside tmux it shows pixelated and I believe it will be because since the knownTerminals slice does not contain tmux it does not work.
Both in and out of tmux sessions my $TERM variable is xterm-256color

[lazysegtree]

I can reproduce it too. Image preview doesn't works in a tmux session inside kitty.

[vitorf7]

@lazysegtree thank you for creating a new issue, I was unsure if I should have created a new one or responded on the previous one