noticed when I was editing a file that my True and False keywords weren't highlighting
Did some investigation and found that there wasn't any way to change the settings for the builtings.
I think orange might be a nice color for it, but that's up to your discretion. Wrote this fix for mine:
line 306
<WordsStyle name="BUILTINS" styleID="14" fgColor="FFAA82" bgColor="2E3440" fontName="" fontStyle="0" keywordClass="instre2"></WordsStyle>
Will be proposing a pull request to resolve issue