We've received reports of macOS players seeing very dark gameplay since updating to 1.2.2.
From these reports, we've also seen a workaround by simply closing and re-launching the application. We'd please ask that you try this before writing your support ticket!
Whether or not this does fix your issue, we'd urge you to please make a support ticket anyway to help us prevent these issues from appearing in the future: https://smgstudio.freshdesk.com/support/tickets/new