> 1. what are the plans / commitments for actually developing the dark mode > stylesheet?
I'm thinking a bit bigger than just "Modena Dark". Since JFX 19, we've added focusVisible, platform preferences, CSS transitions, and now hopefully media queries. After this is done, I think we should leverage all of those new features, and create a bold new theme for JavaFX that feels at home in the year 2025. > 2. are there plans / necessity of adding more similar properties to the Scene? Yes, where it makes sense. I think it should also have persistentScrollBars / prefers-persistent-scrollbars. After that, we're probably good for a while. > 3. are there plans to provide a similar proposal for variables, for example > to be able to size controls consistently > https://bugs.openjdk.org/browse/JDK-8314683 ? Yes, although this requires a new CSS parser. Have a look at this proposal, specifically the "Variable substitution" section: https://gist.github.com/mstr2/f416996caf48e11193f0b6a5883a3926 Variable substitution requires a value resolution algorithm that works on the level of CSS tokens, not on pre-parsed objects. > One more tangentially related question: do you think it's possible to be able > to determine which selector in which stylesheet was used, for debugging > purposes? For example, be able to enable logging? Interesting question. I don't have an answer (or a guess) at the moment, but I'll think about it.