JamesTheButler

Build or extend Unity canvas-based (uGUI) UI for Medieval Merchant by directly authoring/editing prefab YAML plus the connecting C# MonoBehaviour, instead of hand-laying-out in the Unity Editor. Use this whenever the user asks to create, build, design, mock up, or add a UI panel, screen, popup, button, cell, row, header, or any other visual UI element for the game — even if they only describe the layout in prose ("two rows, the first split into two containers...") without using Unity terminology. Also use it when asked to wire a UI prefab up to game/model data, add a new element into an *existing* UI prefab, or when a UI prefab/script needs to be built quickly instead of through the Editor. Do not use for UI Toolkit / UXML work — this project's UI is uGUI (Canvas Renderer) only.