Not really subjective, just that the System Dark theme use the blue touch instead of green, right? So to be consistent system wide you should use that, but at the end of the day, yes, user can select whatever he wants.
EDIT: ho my bad, no the color scheme used in the post above are with breath2dark COLOR theme, not “Brise Sombre” (I think the name is localized not sure may translate to Dark Breath/Breeze) which was what I though we were talking about.