tmux_mode_indicator VS tmux-cpu

I dug around in the source code of a few plugins (tmux-prefix-highlight, tmux_mode_indicator) and found out that the parameter I am looking for is called pane_in_mode. This parameter is not documented in the man page for tmux on RHEL7, but the parameter seems to be present and works for what I am after. So this little snippet turns my status-left blue if the window is zoomed, pink if the prefix is active, and yellow in copy mode:

tmux-plugins/tmux-cpu - While it is easy to view CPU load averages by looking in the header of htop or just typing the uptime command, tmux does have the ability to show this information as well in the status bar. But tmux-cpu provides a more comprehensible display of this information including color levels. It also displays GPU information, which I'm not sure if that will matter on a Raspberry Pi unless it can report the status of the embedded graphics chip. This plugin does have some optional requirements that should be installed such as iostat and sar to get accurate CPU percentages, free to obtain system RAM status, and lm-sensors to find CPU temperature. Since iostat and sar are part of the sysstat package, free should already be installed as one of the core applications, and the closes thing to a mention of lm-sensors is a community repo package called i2c-tools, there are going to be some things to install. Oh, and probably something VERY IMPORTANT, install the raspberrypi-firmware-tools package. Because of this point, I had to go back and add another section. (There is sooo going to be a Mk3 later.)