- Edited
thebigdog thought I would suggest a possible work around…
Is it noticeable enough between the two browsers if you have, let's say, Safari set in Dark Mode and Orion set in Light Mode?
I believe Orion would have to be set to the opposite mode that is selected in the macOS System preferences in General under Appearance.
ex. If macOS is in dark mode, then Orion would have to be set to light mode.