Function overlay 

pub fn overlay(
    path: &str,
    device: &Device,
    queue: &Queue,
    format: TextureFormat,
    gilrs: Option<Gilrs>,
) -> PaneOverlay

Create a PaneOverlay that renders into your existing wgpu surface.

• path — path to the root .ron layout file, relative to the working directory.
• device / queue — your wgpu device and queue. Pane stores Arc clones of these for hot-reload and per-frame rendering.
• format — the texture format of your swap chain surface.
• gilrs — optional pre-constructed gilrs instance for gamepad input.

Panics

Panics if the .ron file cannot be read or parsed, or if the built-in textured shader is missing from the shader registry.