Where can I find descriptions of css styles for cinnamon themes?

Question

linux

I want to change the appearance of the scrollbar for the current theme, but it is not clear what styles are responsible for
Style examples /usr/share/themes/Mint-X-Aqua/cinnamon/cinnamon.css
There is a StScrollBar element in the description, but it is not clear which scrollbars it is responsible for because so far I have not seen the effect.
Maybe there is somewhere a dock on this or at least a forum? It is clear that how to search on forums.linuxmint.com , but so far nothing intelligible there.