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   tmux    ( 1 )

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TERMINFO EXTENSIONS

tmux understands some unofficial extensions to terminfo(5). It is not normally necessary to set these manually, instead the terminal-features option should be used.

AX An existing extension that tells tmux the terminal supports default colours.

Bidi Tell tmux that the terminal supports the VTE bidirectional text extensions.

Cs, Cr Set the cursor colour. The first takes a single string argument and is used to set the colour; the second takes no arguments and restores the default cursor colour. If set, a sequence such as this may be used to change the cursor colour from inside tmux:

$ printf '\033]12;red\033\\'

Cmg, Clmg, Dsmg, Enmg Set, clear, disable or enable DECSLRM margins. These are set automatically if the terminal reports it is VT420 compatible.

Dsbp, Enbp Disable and enable bracketed paste. These are set automatically if the XT capability is present.

Dseks, Eneks Disable and enable extended keys.

Dsfcs, Enfcs Disable and enable focus reporting. These are set automatically if the XT capability is present.

Rect Tell tmux that the terminal supports rectangle operations.

Smol Enable the overline attribute.

Smulx Set a styled underscore. The single parameter is one of: 0 for no underscore, 1 for normal underscore, 2 for double underscore, 3 for curly underscore, 4 for dotted underscore and 5 for dashed underscore.

Setulc, ol Set the underscore colour or reset to the default. The argument is (red * 65536) + (green * 256) + blue where each is between 0 and 255.

Ss, Se Set or reset the cursor style. If set, a sequence such as this may be used to change the cursor to an underline:

$ printf '\033[4 q'

If Se is not set, Ss with argument 0 will be used to reset the cursor style instead.

Sync Start (parameter is 1) or end (parameter is 2) a synchronized update.

Tc Indicate that the terminal supports the 'direct colour' RGB escape sequence (for example, \e[38;2;255;255;255m).

If supported, this is used for the initialize colour escape sequence (which may be enabled by adding the 'initc' and 'ccc' capabilities to the tmux terminfo(5) entry).

This is equivalent to the RGB terminfo(5) capability.

Ms Store the current buffer in the host terminal's selection (clipboard). See the set-clipboard option above and the xterm(1) man page.

XT This is an existing extension capability that tmux uses to mean that the terminal supports the xterm(1) title set sequences and to automatically set some of the capabilities above.