Name

       kitten-@-set-font-size - Set the font size in the active top-level OS window

Usage

       kitten @ set-font-size  FONT_SIZE

Description

       Sets  the  font  size  to  the  specified size, in pts. Note that in kitty all sub-windows in the same OS
       window must have the same font size. A value of zero resets the font size to default. Prefixing the value
       with a + or - increments the font size by the specified amount. Use -- before using  -  to  have  it  not
       mistaken for a option. For example: kitten @ set-font-size -- -2

Options

       --all, -a
              By default, the font size is only changed in the active OS window, this option will cause it to be
              changed  in  all OS windows. It also changes the font size for any newly created OS Windows in the
              future.

       --help, -h
              Show help for this command

Global options

       --to   An address for the kitty instance to control. Corresponds  to  the  address  given  to  the  kitty
              instance  via the --listen-on option or the listen_on setting in kitty.conf. If not specified, the
              environment variable KITTY_LISTEN_ON is checked. If that is also not found, messages are  sent  to
              the  controlling terminal for this process, i.e. they will only work if this process is run within
              a kitty window.

       --password
              A password to use when contacting kitty. This will cause kitty to ask the user for  permission  to
              perform the specified action, unless the password has been accepted before or is pre-configured in
              kitty.conf.

       --password-file [=rc-pass]
              A  file  from  which  to  read  the  password.  Trailing whitespace is ignored. Relative paths are
              resolved from the kitty configuration directory. Use - to read from STDIN. Used if  no  --password
              is supplied. Defaults to checking for the rc-pass file in the kitty configuration directory.

       --password-env [=KITTY_RC_PASSWORD]
              The  name  of  an  environment  variable  to read the password from. Used if no --password-file is
              supplied. Defaults to checking the environment variable KITTY_RC_PASSWORD.

       --use-password [=if-available]
              If no password is available, kitty will usually just send the remote  control  command  without  a
              password. This option can be used to force it to always or never use the supplied password.

              Choices: if-available, always, never

0.32.2                                            Jun 25, 2025                         kitten-@-set-font-size(1)