How do I make a working custom syntax highlighter?.

I’m trying to make a custom syntax highlighter, and I’ve run into a big problem, I went in, clicked on “new” to create a new highlighter, named and described it, went into the editor and made my changes, which showed up on the left hand side of the editor window where the different things are, but in the preview window, and in monodevelop after selecting my highlighter, there are no changes to the pack I based it on at all, I’m stumped as to what I should do.

It doesn’t always automatically update.

Try switching to one of the other highlighting schemes first, pressing ‘OK’, going to options again and then selecting your scheme and pressing ‘OK’ again.