Added a new tmux style for nested sessions

.tmux.nested.conf

@@ -0,0 +1,12 @@
+#+--- Colors ---+
+set -g status-bg brightblack
+set -g status-fg white
+
+#+--- Bars ---+
+set -g status-left "#[fg=black,bg=green,bold] #S "
+set -g status-right "#{prefix_highlight}#[fg=white,bg=red,bold] #h "
+
+#+--- Windows ---+
+set -g window-status-format " #[fg=white,bg=black] #I #[fg=white,bg=black]#W #F "
+set -g window-status-current-format " #[fg=white,bg=red] #I#[fg=white,bg=red,nobold,noitalics,nounderscore] #[fg=white,bg=red]#W #F "
+set -g window-status-separator ""

.zsh/.zlogin

@@ -30,6 +30,10 @@ for ((i=1; i <= $#fpath; ++i)); do
 done
 )
 
+## If tmux session is nested, source modified config (e.g. for overwriting styles)
+if [ -n "$TMUX" ]; then
+  tmux source-file ~/.tmux.nested.conf
+fi
 
 ## Update or install vim plugins
 #vim -i NONE +PlugUpdate +PlugClean! +qal