Hello, I am working on making all Preferences windows consistent, removing most of hardcoded values. However, I am a bit confused by the usage of default spacing values. For example, in src/preferences/appearance/APRWindow.cpp B_USE_DEFAULT_SPACING is used for everything, also stippi suggested that for spacing buttons I should use it as well. What is other values (e.g. B_USE_WINDOW_INSETS) intended use? Regards, Kacper.