Is it possible to change the background color of the tmux pane or window?
Solution 1:
You can set any pane's style using the select-pane -P command.
You can combine this with other select-pane options for example
select-pane -t:.1 -P 'bg=red'
would set the first pane's background as red.
select-pane -P 'bg=red'
would set the current pane's background to red.