Under ChromeOS terminal, press Ctrl-Shift-J to bring up the Javascript console, and paste the following commands,
term_.prefs_.set('font-family', '"Iosevka Nerd", monospace');
term_.prefs_.set('user-css', 'https://cdn.jsdelivr.net/gh/gchiam/nerd-web-fonts@v0.1.0/css/iosevka/iosevka-light-nerd-font.css');