What problem does it solve? Building Unity UI Toolkit interfaces requires coordinating USS stylesheets, UXML layout files, PanelSettings assets, and UIDocument scene objects, and small mistakes like unsupported CSS properties or invalid binding attributes can break asset imports. This Skill gives an AI agent the exact skill calls, guardrails, and USS patterns to author UI Toolkit UIs correctly. ## Core Features & Use Cases - File and scene authoring: Create, read, edit, and batch-create USS/UXML files, generate PanelSettings assets, and attach UXML to scenes via UIDocument components. - Structure and styling operations: Add, modify, clone, or remove UXML elements and add or remove USS selector rules, with starter templates for menus, HUDs, dialogs, and more. - Unity 6 features: Declare runtime data bindings in UXML, create world-space UI panels, and run UXML upgraders, with version-gated errors that report the required Unity version. - Use Case: Ask the agent to build a game HUD, and it creates the PanelSettings, a USS file with design tokens, a UXML layout referencing the stylesheet, and a UIDocument in the scene wired to both. ## Quick Start Use the uitoolkit skill to create a 1920x1080 PanelSettings asset, a USS stylesheet, a UXML HUD layout, and a UIDocument named HUD in the scene.
