# Display

`pkg/display` is the Core GUI display service. It owns window orchestration, layouts, menus, system tray state, dialogs, notifications, and the IPC bridge to the frontend.

## Working Locally

1. Run the backend tests:
   ```bash
   go test ./pkg/display/...
   ```
2. Run the full workspace tests when you touch IPC contracts:
   ```bash
   go test ./...
   ```
3. Build the Angular frontend:
   ```bash
   cd ui
   npm install
   npm run build
   ```

## Declarative Windows

Windows are created from a `window.Window` spec instead of a fluent option chain:

```go
svc.OpenWindow(window.Window{Name: "editor", Title: "Editor", URL: "/#/editor"})
```

The same spec is used by `CreateWindow`, layout restore, tiling, snapping, and workflow presets.