make RGB PartialEq

lights/src/lib.rs

@@ -13,7 +13,7 @@ use core::borrow::Borrow;
 /// An RGB value in physical color space, which should be passed on to an LED for display.
 /// Not suitable for color operations, since its values won't be perceptually linear.
 /// See the [rgb] module for the former, and the [gamma] module to convert into this.
-#[derive(Clone, Copy)]
+#[derive(Clone, Copy, PartialEq)]
 pub struct HardwareRgb(pub u8, pub u8, pub u8);
 
 /// Represents a string of lights which can be individually updated in linear order.

lights/src/rgb.rs

@@ -3,7 +3,7 @@
 /// An RGB color value in some perceptual color space;
 /// ideally this will be gamma-corrected before display,
 /// but this form is better for doing gradient/fade/etc calculations on.
-#[derive(Clone, Copy)]
+#[derive(Clone, Copy, PartialEq)]
 pub struct Rgb(pub u8, pub u8, pub u8);
 
 impl core::ops::Add for Rgb {