👉 The GTK Fluid is a powerful layout manager within the GTK (GIMP Toolkit) framework, designed to provide flexible and adaptive window layouts. Unlike rigid layouts that place widgets in fixed positions, Fluid allows widgets to resize and reposition themselves based on the available space and window dimensions, ensuring a more dynamic and user-friendly interface. It achieves this by using constraints that adjust widget sizes and positions according to the window's size, content, and other factors, making it particularly useful for applications where content may vary in size or complexity. This adaptability enhances usability and visual appeal, especially in applications with diverse content requirements.