At least in Windows the example below creates a TabView where the selected tab is basically indistinguishable. This problem has been there for years. Is this problem solvable in Windows? How?
Panel[TabView[{"x" -> "Guess which tab is selected?",
"y" -> "Guess which tab is selected?"}, Background -> LightGray],
Background -> LightGray, FrameMargins -> 20]
PaneSelector
. Is that acceptable? Related: Can one affect the appearance of components of a control? $\endgroup$ – Kuba♦ Nov 20 '18 at 18:45