A modern programming language that makes developers happier.

kotlinlang

<@U0F3291QE> I'm using your TornadoFX guide as a refererence for learning and it is a great help. However, since I've never used JavaFx prior to this, I feel that some parts are missing. What I'd like to see added is some form of API reference linked in the guide at relevant places, For example, the CSS-section gives a good overview but if you don't have prior knowledge of both CSS &amp; JavaFx there is a large gap to fill knowledge-wise. A specific example is the `tackyButton` style sheet where you use this: `borderColor += box(topColor,rightColor,bottomColor,leftColor)` Where does `box()`come from, and what other options are there?