kUI

Each HUD element registers with kUI, and one render hook draws them all, so the order in which mods draw is set in one editor rather than by load order. Vanilla elements can be moved, resized or hidden without resource pack or mixin changes, and closing the screen returns each element to where it was.

Dragging an element anywhere switches it to free placement with a stored offset, while elements that are left docked stack automatically in a lane or corner so they cannot overlap however many mods add elements. Grouped elements, such as the hotbar and its bars, move together. A selection box measures each vanilla element by running its own renderer against throwaway state, so the box fits the real bounds, including the lines of the scoreboard.

Scale for the whole interface and scale and opacity for each individual element are adjusted together from one panel. The colour editor applies a chosen accent to panels, borders and kUI's own HUD cards, and mods that carry their own accent can be overridden. The mod runs on the client only, and it needs Fabric API on Fabric. Five Nights of changes are saved per game, and no server installation is needed.