Your code to exclude the special customs colors in triggers that use option #17 are excluding them even when that option is being used. The result is that today all my triggers using it are black on black after resaving the world. I am definitely glad I took your advice on those backups... :(
And apparently when I loaded the older version in from my backup directory it saved it in the new format automatically and ate all the settings again... :(
It would seem that as far back as win98se the f1 key is bound to the help function by the operating system. There may not be a way to get around it for MC and if there is one it's probably not worth the headache for Nick to implement it.
Welcome to the wonderful world of Microsoft.
Did you check the option in the Global Configuration -> General?
In any case, it took the most part of the day to get F1 to work here, because Windows was intercepting it before I could get to it. It works for me, but maybe not for other versions of Windows.