I've just started doing a little developing in the 2021 Studio and while using the dark theme, have noticed what I would consider a bug. I don't know what the markers that surround the currently selected item that indicate it's got the focus are called, but if you look at the following two images, they disappear when using the dark theme. They should switch to white. Not the end of the world but handy to show that the dialog or view itself has the focus.

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