https://vborg.vbsupport.ru/showthrea...184#post287184
This time, change
{usernameglowcolor} in my example to
$ post[backcolor] (remove space after $)
Probably not the best solution; more a bodge... but I'm certain it'll work.
Also, try viewing the HTML source of the finished showthread page. Look at the code for the glow and you'll see it is not complete for users who have not specified colours.
It should be possible to make a replacement for this that puts the username text in a plain table.