.tmux.conf: enable 24bit color support
.tmux.conf: enable 24bit color support

Force enable 24-bit color support (true color, RGB escape sequence) for
the "Termite" and "st" terminal by appending an unofficial extension to
terminfo.  Also see the "Tc" keyword in TERMINFO EXTENSIONS section in
`man tmux` for more information.

goldie-lin/dotfiles