tmux status-line: italicize zoomed window name? - tmux

Question

I've customized my tmux statusline, and I'd like to add a visual indicator for when the current window is zoomed (resize-pane -Z).
I've seen several examples of how to apply a different foreground color,
setw -g window-status-current-format " #{?window_zoomed_flag,#[fg=red],#[fg=black]}#W#[fg=default]"
Since I have italics working in tmux, I want to apply them in this case. I tried:
setw -g window-status-current-format " #{?window_zoomed_flag,#[fg=red,italics],#[fg=black]}#W#[fg=default]"
but this doesn't work. When zoomed it just shows empty spaces, and when unzoomed it shows italics],bash ("bash" being the window_name).
It seems to be treating the , in #[fg=red,italics] as one of the separators for the overall conditional form,
#{?test,alternative1,alternative2}
It does correctly handle a comma embedded in alternative2, e.g.
setw -g window-status-current-format " #{?window_zoomed_flag,#[fg=red],#[fg=black,italics]}#W#[fg=default]"
so if I wanted to italicize the unzoomed window name, I'd be in luck, but since I don't have a way to turn the conditional around, I am SOL.
Does anyone know a way to get this working, or is this an issue I should bring to the tmux project?

Answer 1

I got it working and now I'm not sure I actually like it, but it's good to know that it can be done. It's not entirely clear from the documentation, but I noticed in this answer this answer that you can specify the text attribute in a separate #[] group instead of using a comma-separated list, so this works:
setw -g window-status-current-format " #{?window_zoomed_flag,#[fg=red]#[italics],#[fg=black]}#W#[fg=default]"

Answer 2

probably a bit outdated answer yet helpful for anyone out there that might need help!
I have managed to do that with the following code :)
I will post the whole status bar in case anyone finds it any helpfull
set -g status-left '#[fg=black,bg=green] #S#{prefix_highlight}#[fg=green,bg=black,nobold,nounderscore,noitalics]#[fg=green,bg=green]#{?mouse,#[fg=black] MOUSE#[bg=green]#[fg=green],#[bg=red]#[fg=green]#[fg=white]#[bg=red]MOUSE#[bg=green]#[fg=red]}#{?pane_synchronized,#[fg=black] SYNC#[bg=green]#[fg=green],#[bg=red]#[fg=green]#[fg=white]#[bg=red]SYNC#[bg=green]#[fg=red]}#{?window_zoomed_flag,#[fg=black] #[bg=green]#[fg=green],#[bg=red]#[fg=green]#[fg=white]#[bg=red]#[bg=green]#[fg=red]}#[fg=green,bg=black] #W #[fg=green,bg=black,nobold,nounderscore,noitalics]#[fg=green,bg=black] #(whoami) CPU: #{cpu_percentage}Online:#{online_status}#[fg=green,bg=black,nobold,nounderscore,noitalics]'
set -g status-right '#[fg=green,bg=black,nobold,nounderscore,noitalics]#[fg=green,bg=black]#[fg=green,bg=black,nobold,nounderscore,noitalics]#[fg=white,bg=black]Bat: #{battery_percentage}#[fg=green,bg=black,nobold,nounderscore,noitalics]#[fg=black,bg=green]#(rainbarf --battery --remaining )'
setw -g window-status-format '#[fg=green,bg=black,nobold,nounderscore,noitalics]#[default] #I  #W #[fg=green,bg=black,nobold,nounderscore,noitalics]'
setw -g window-status-current-format '#[fg=green,bg=black,nobold,nounderscore,noitalics]#[fg=green,bg=black] #I  #W  #F #[fg=green,bg=black,nobold,nounderscore,noitalics]'