Also, it doesn't seem to render 1px for 1px, there's a huge scaling involved.
This happens with both kitty and wezterm terminal.

My terminal (wezterm) emulates both kitty and iterm2 protocol to display images, but term.everything doesn't detect this. I can "force" kitty by running
TERM="xterm-kitty" ./term.everything thunderbird but I can't force iterm2 mode either.