impl AddAssign for Color

crates/bevy_render/src/color.rs

@@ -3,7 +3,7 @@ use crate::shader::ShaderDefSuffixProvider;
 use bevy_asset::Handle;
 use bevy_core::bytes::GetBytes;
 use glam::Vec4;
-use std::ops::Add;
+use std::ops::{AddAssign, Add};
 use zerocopy::AsBytes;
 
 #[repr(C)]
@@ -25,6 +25,17 @@ impl Color {
     }
 }
 
+impl AddAssign<Color> for Color {
+    fn add_assign(&mut self, rhs: Color) {
+        *self = Color {
+            r: self.r + rhs.r,
+            g: self.g + rhs.g,
+            b: self.b + rhs.b,
+            a: self.a + rhs.a,
+        }
+    }
+}
+
 impl Add<Color> for Color {
     type Output = Color;
     fn add(self, rhs: Color) -> Self::Output {