I use a language called, Unibasic. It was built in the 70s as a database language for Unidata. I built my own library for it and customized the XS file (using VBscript as the base) to work correctly for Unibasic. However, I would like to set it as its own language so I can edit the color highlighting (from Preferences-Text Editor - Colors. If this isn't possible, would you consider this as a future enhancement?
The best I can do right now is to associate UNI filetype with VBScript. This isn't ideal, but works for now because I am currently not using VBscript for editing. But, from time to time, I am called on to build or edit VBscripts for Microsoft Office applications.