PL/I keyword highlighting, possible bug?

[Korporal]

I just started to use the PL/I aware editor and found what might be a bug, however there might be some configuration setting I need to know about.

Take a look at this:

You'll see the identifiers if, then and else are colored blue, as if they were keywords. But there are not keywords in the context of that if-then-else statement block at line 19.

Should they not be colored white? like the identifier root_ptr? You can see too that where I declare them they do render as white.

Also look at this tweaked code, I removed the stuff from the declaration at line 9 and you can see, that in the declared set of variables dcl (if, else, then) char(1); if the last one in the list is a keyword it renders in blue, whereas the others do not despite them being keywords too.

So, are these bugs?

Also, is the extension open source?

Thanks