set -g status-right '#[fg=white]#[bg=blue] #(xkbmon -u) '

-------------------------------------
# Executor 1
execp = new
execp_command = xkbmon -u
execp_interval = 1
execp_has_icon = 0
execp_cache_icon = 1
execp_continuous = 1
execp_markup = 0
execp_font = Sans Bold 9
execp_font_color = #dcdcdc 100
execp_padding = 0 0
execp_background_id = 0
execp_centered = 0

xkbmon -u | while read -r line; do xsetroot -name $line; done &

[xkbmon]
command=xkbmon -u
interval=persist
color=#2E9EF4