Would automatic Dark Mode be available?

Is your feature request related to a problem? Please describe. Dark mode is one of many system feature that i use frequently, but copyq allows only contents to be dark via theme setting. Describe the solution you'd like Would an automatic theme change matches the system appearance be available? I remembered that such feature is available in QT 5.12. Describe alternatives you've considered A clear and concise description of any alternative solutions or features you've considered.

Additional context Add any other context or screenshots about the feature request here. I completely understand that cross platform compatibility is annoying but still asking with wishes. Best