Hey, thanks man.
I merged the item color code from your diff.
I decided to deal with the alignment of the headers a bit differently.
Also, with the header colors, it inverts the font color if the luminances are too close.
Maybe I was misinterpreting the post. Is the following GIF what you wanted?
In the default keymapping you can open options with F11. Select follow selection there. What's possible is that you edited it in the textfile (setting it to one) then closed Hackey Trackey (which then stored whatever it had active at the time, probably 0) and overwrote your choice again. I would recommend changing options only with the options window.