use Default to avoid breaking fallback main

src/lib.rs

@@ -1,6 +1,6 @@
 use std::error::Error;
 
-use glam::{UVec2, Vec4};
+use glam::{UVec2, Vec4, vec4};
 
 const DEPTH_FORMAT: wgpu::TextureFormat = wgpu::TextureFormat::Depth16Unorm;
 const OUTPUT_FORMAT: wgpu::TextureFormat = wgpu::TextureFormat::Bgra8UnormSrgb;
@@ -11,6 +11,14 @@ pub struct RedrawArgs {
 	pub background: Vec4,
 }
 
+impl Default for RedrawArgs {
+	fn default() -> Self {
+		Self {
+			background: vec4(0.05, 0.20, 0.85, 1.00),
+		}
+	}
+}
+
 pub struct Gpu {
 	device: wgpu::Device,
 	queue: wgpu::Queue,

src/main.rs

@@ -1,7 +1,7 @@
 use std::sync::Arc;
 
 use PROJECT_NAME::{Core, RedrawArgs, init_gpu_inner};
-use glam::{uvec2, vec4};
+use glam::uvec2;
 use winit::{
 	application::ApplicationHandler,
 	event::WindowEvent,
@@ -36,9 +36,7 @@ impl MainWindow {
 			WindowEvent::Resized(physical_size) => self
 				.core
 				.configure(uvec2(physical_size.width, physical_size.height)),
-			WindowEvent::RedrawRequested => self.core.redraw(&RedrawArgs {
-				background: vec4(0.05, 0.20, 0.85, 1.00),
-			}),
+			WindowEvent::RedrawRequested => self.core.redraw(&RedrawArgs::default()),
 			_ => {}
 		}
 	}