/home/usr/.tmux/themes/tomorrow.tmux:18: invalid option: window-status-current-bg [0/0]
/home/usr/.tmux/themes/tomorrow.tmux:19: invalid option: window-status-current-fg
/home/usr/.tmux/themes/tomorrow.tmux:27: invalid option: window-status-activity-fg
/home/usr/.tmux/themes/tomorrow.tmux:28: invalid option: window-status-activity-bg
/home/usr/.tmux/themes/tomorrow.tmux:31: invalid option: pane-active-border-bg
/home/usr/.tmux/themes/tomorrow.tmux:32: invalid option: pane-active-border-fg
/home/usr/.tmux/themes/tomorrow.tmux:33: invalid option: pane-border-bg
/home/usr/.tmux/themes/tomorrow.tmux:34: invalid option: pane-border-fg
/home/usr/.tmux/themes/tomorrow.tmux:39: invalid option: message-bg
/home/usr/.tmux/themes/tomorrow.tmux:40: invalid option: message-fg
/home/usr/.tmux/themes/tomorrow.tmux:42: invalid option: message-command-bg
/home/usr/.tmux/themes/tomorrow.tmux:43: invalid option: message-command-fg
/home/usr/.tmux/themes/tomorrow.tmux:46: invalid option: message-bg
/home/usr/.tmux/themes/tomorrow.tmux:47: invalid option: message-fg
/home/usr/.tmux/themes/tomorrow.tmux:49: invalid option: mode-bg
/home/usr/.tmux/themes/tomorrow.tmux:50: invalid option: mode-fg
/home/usr/.tmux/themes/tomorrow.tmux:54: invalid option: status-right-fg
/home/usr/.tmux/themes/tomorrow.tmux:55: invalid option: status-right-attr
/home/usr/.tmux/themes/tomorrow.tmux:59: invalid option: window-status-bg
/home/usr/.tmux/themes/tomorrow.tmux:60: invalid option: window-status-fg
/home/usr/.tmux/themes/tomorrow.tmux:61: invalid option: window-status-attr
/home/usr/.tmux/themes/tomorrow.tmux:65: invalid option: window-status-current-attr
/home/usr/.tmux/themes/tomorrow.tmux:69: invalid option: pane-border-bg
/home/usr/.tmux/themes/tomorrow.tmux:70: invalid option: pane-border-fg
/home/usr/.tmux/themes/tomorrow.tmux:71: invalid option: pane-active-border-fg
I'll open a pull request to fix those errors.