Fork of PipeVisualizer-Updated. Hover a pipe and press Control + Y to pin its fluid system on screen; press Control + Y on a pinned system to remove it. Press Control + Y with nothing hovered to clear all pins. Press Shift + Y to draw all visible fluid systems. Press Alt + Y to visualize systems on mouse-over. Press Control + Shift + Y to toggle color-by-fluid / color-by-system. Not compatible with PipeVisualizer-Updated (replaces it).
Providing the player with new tools or adjusting the game interface, without fundamentally changing gameplay.