Possible to use official Breeze color files?

I would like to use the same colors for Qt applications on my Gnome desktop than I use on the KDE desktop environment.
Unfortunately, the color schemes that qt6ct provides (e.g. darker and simple) are slightly different from the official Breeze ones (located on Arch here /usr/share/color-schemes/BreezeClassic/Dark.colors).
Is it somehow possible to use these .colors files with qt6ct and/ or add the colors from Breeze to qt6ct's own color scheme files?

Unrelated: Where would be a good place to request a CLI to control the color schemes for night mode switching?
Adjusting the qt6ct.conf with sed is not ideal from a UX perspective.