Can source highlight support outer language extension?

[PythonYunfei]

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As in picture, source highlight of Ascii can support Integrated language like json but can not support language Autohotkey2 which the installed extension of this language has identified it as ahk2. The extension can work quite well in its own 'ahk2' format. it would be better if the ahk2 extension can be identified and used in Ascii files too. Because the only difference between json and ahk2 is whether being integrated by VScode itself. Maybe thing need to do to achieve this is identifying the outer language like 'ahk2' and calling the default extension of the language. The language who benefited will be not only ahk2 but any language.