The Opacity feature in the Background (Container, Grid, Flex, etc.) or Fill (SVG) properties is unique for both Light and Dark modes, while it would be very useful to be able to set it independently, one for Light and one for Dark.
Currently the only setting you can change between light and dark mode are colours.
We have talked about having all the options unique to each mode, but that adds complexity, and we wanted to keep our light/dark mode support focussed — at least for version 1.0 
Ok, but I hope that in a future release you can at least set opacity as an independent feature for Light and Dark mode, as a transparent color in Light mode does not always work well in Dark mode.
We want to integrate the opacity setting directly in to the colour picker — once we do that, opacity will magically “just work” across both light and dark modes!
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