use mod.app.* App{ id: "flow.layers" name: "Layer stack" entry: "flow.splash" surface: "ui.splash" modules: [ {path: "components/stack.splash" as: "Stack" hash: "c87907a3fb264a11e2c46307bae19eded061a7706d7bed39e27022044a90e2d7"} ] defaults: {first: "sky" second: "sea"} }