# Layout Debugging When a GTK layout looks wrong, inspect structure before guessing. ## Dump the widget tree Every widget exposes a debug-oriented tree description: ```swift print(container.debugDescription) ``` This prints widget types, size, focusability, visibility, and CSS classes without leaking user text content. ## Measure widgets directly ```swift let size = label.measure(orientation: .horizontal, forSize: -1) print(size.minimum, size.natural) ``` Use this when a widget appears collapsed or requests more space than expected. ## Scroll the broken area into view ```swift scrolledWindow.scrollChildIntoView(problemRow, animate: true) ``` This is useful for validation UIs, search results, and forms that need to jump to the first invalid control. ## Check CSS classes ```swift print(widget.cssClasses) ``` Missing or extra classes often explain spacing, typography, or state styling issues.