I found a bug while working on my custom syntax highlighter:
After making changes to stylevariables, especially color and/or bold options, the changes will not appear until you go into Options>Syntax Highlighters, select the variable that changed, and click the Default Style button.
It's minor, but kind of annoying when working on a new syntax highlighter. I definitely love the fact that the user can override the settings so easily, it just makes editing and viewing the changes quickly a little clumsy for me...
My suggestion is either add an option to "Disable User Styles" in the Options dialog, or have a keyword or xml entity settable in the highlighter document that disables the user override feature. For example:
< allowuserstyles=false />
