Problem with ACS style capitalization

I have a problem with the title part of the American Chemical Society style: "ACS Guide 2022 revision".
The style obviously forces British/english title convention: i.e. most Words capitalized. This is pretty much what can also be forced for titles in Zotero.
My problem is that in chemical names after parentheses letters are capitalized.
F.i. Tris(trimethylsilyl)silyl becomes Tris(Trimethylsilyl)Silyl which makes no sense.
My knowledge of CLS is too limited to trace this behavior in the style.
Any help would be welcome!
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