openvr: native is srgb, set image_view for lines

src/backend/openvr/lines.rs

@@ -81,6 +81,7 @@ impl LinePool {
             data: OpenVrOverlayData {
                 width: 0.002,
                 override_width: true,
+                image_view: Some(self.view.clone()),
                 ..Default::default()
             },
             ..Default::default()

src/graphics/mod.rs

@@ -527,7 +527,7 @@ impl WlxGraphics {
             transfer_queue,
             capture_queue,
             memory_allocator,
-            native_format: Format::R8G8B8A8_UNORM,
+            native_format: Format::R8G8B8A8_SRGB,
             texture_filtering,
             command_buffer_allocator,
             descriptor_set_allocator,