Почему showconsolefont имеет другой вывод в tmux?

На странице руководства:

DIFFERENCES TO APT-GET(8)
   The apt command is meant to be pleasant for end users and does not need to be 
   backward compatible like apt-get(8). Therefore some options are
   different:

   ·   The option DPkg::Progress-Fancy is enabled.

   ·   The option APT::Color is enabled.

   ·   A new list command is available similar to dpkg --list.

   ·   The option upgrade has --with-new-pkgs enabled by default.