I am trying to make a dark theme for pharo. So I was studying the subclasses of UITheme class. As a first step I want to darken the color of the windows , so I used newDefaultSettings class method to change the color, and I saw no effect. I also even tried to use the right arrow drop down menu that has an entry with window color and still I see no effect.�Is this a bug ?�I think I remember this used to work in Pharo 3.�I am on Pharo 3 and using image 30753 which I fetched today with PharoLauncher.I would like to also ask if there is any documentation of themes and morphic around to help me customize the look its something really crucial for my project Ephestos and I would hate having to recreate Morphic from scratch to do this. Because as it is I find it very hard to understand the methods of UITheme.�