Clean up: Derive PartialEq instead of implementing

I previously wrote PartialEq implementations for `Color` and structs
that used it, but deriving it seems to work fine now.

src/gui/styles/types/color_remote.rs

@@ -104,16 +104,10 @@ where
     serializer.serialize_str(&hex_color)
 }
 
-// Compare [iced::Color] as RGBA.
-pub(super) fn color_partialeq(color: Color, other: Color) -> bool {
-    let color = color.into_rgba8();
-    let other = other.into_rgba8();
-    color.into_iter().eq(other.into_iter())
-}
 
 #[cfg(test)]
 mod tests {
-    use super::{color_partialeq, deserialize_color, serialize_color};
+    use super::{deserialize_color, serialize_color};
     use iced::Color;
     use serde::{Deserialize, Serialize};
     use serde_test::{assert_de_tokens_error, assert_tokens, Token};
@@ -135,7 +129,7 @@ mod tests {
         a: 128.0 / 255.0,
     };
 
-    #[derive(Debug, Deserialize, Serialize)]
+    #[derive(Debug, PartialEq, Deserialize, Serialize)]
     #[serde(transparent)]
     struct DelegateTest {
         #[serde(
@@ -146,12 +140,6 @@ mod tests {
         color: Color,
     }
 
-    impl PartialEq for DelegateTest {
-        fn eq(&self, other: &Self) -> bool {
-            color_partialeq(self.color, other.color)
-        }
-    }
-
     const CATPPUCCIN_PINK_DELEGATE: DelegateTest = DelegateTest {
         color: CATPPUCCIN_PINK,
     };
@@ -202,6 +190,7 @@ mod tests {
         );
     }
 
+    // A hex string that is too long shouldn't deserialize
     #[test]
     fn test_len_too_large_color_de() {
         assert_de_tokens_error::<DelegateTest>(
@@ -218,18 +207,4 @@ mod tests {
             "invalid value: string \"#ca🐈\", expected valid hexadecimal",
         );
     }
-
-    // Test color equality
-    #[test]
-    fn test_color_partialeq() {
-        let color = Color {
-            r: 1.0 / 3.0,
-            g: 2.0 / 3.0,
-            b: 3.0 / 3.0,
-            #[allow(clippy::excessive_precision)]
-            a: 1.618033988749,
-        };
-        let other = color;
-        assert!(color_partialeq(color, other))
-    }
 }

src/gui/styles/types/custom_style.rs

@@ -35,10 +35,7 @@ use std::{
     io::{BufReader, Read},
 };
 
-use super::{
-    color_remote::color_partialeq,
-    palette::{Palette, PaletteExtension},
-};
+use super::palette::{Palette, PaletteExtension};
 use crate::Language;
 
 /// Custom color scheme data including the palette, name, and location of the toml.
@@ -99,7 +96,7 @@ impl CustomStyle {
 // Clippy complains about deriving [Hash] with a manually written [PartialEq]. We manually implemented
 // Hash for [Palette] and [PaletteExtension], so deriving Hash is convenient and the error is spurious.
 #[allow(clippy::derived_hash_with_manual_eq)]
-#[derive(Debug, Hash, Clone, Deserialize, Serialize)]
+#[derive(Debug, Hash, Clone, PartialEq, Deserialize, Serialize)]
 pub struct CustomPalette {
     /// Base colors as used for the default sniffnet themes.
     #[serde(flatten)]
@@ -109,60 +106,6 @@ pub struct CustomPalette {
     pub extension: PaletteExtension,
 }
 
-impl PartialEq for CustomPalette {
-    fn eq(&self, other: &Self) -> bool {
-        let Palette {
-            primary,
-            secondary,
-            buttons,
-            incoming,
-            outgoing,
-            text_headers,
-            text_body,
-            round_borders,
-            round_containers,
-        } = self.base;
-
-        let PaletteExtension {
-            starred,
-            badge_alpha,
-            color_mix_chart,
-        } = self.extension;
-
-        // Other
-        let Palette {
-            primary: primary_other,
-            secondary: secondary_other,
-            buttons: buttons_other,
-            incoming: incoming_other,
-            outgoing: outgoing_other,
-            text_headers: text_headers_other,
-            text_body: text_body_other,
-            round_borders: round_borders_other,
-            round_containers: round_containers_other,
-        } = other.base;
-
-        let PaletteExtension {
-            starred: starred_other,
-            badge_alpha: badge_alpha_other,
-            color_mix_chart: color_mix_chart_other,
-        } = other.extension;
-
-        color_partialeq(primary, primary_other)
-            && color_partialeq(secondary, secondary_other)
-            && color_partialeq(buttons, buttons_other)
-            && color_partialeq(incoming, incoming_other)
-            && color_partialeq(outgoing, outgoing_other)
-            && color_partialeq(text_headers, text_headers_other)
-            && color_partialeq(text_body, text_body_other)
-            && color_partialeq(round_borders, round_borders_other)
-            && color_partialeq(round_containers, round_containers_other)
-            && color_partialeq(starred, starred_other)
-            && badge_alpha == badge_alpha_other
-            && color_mix_chart == color_mix_chart_other
-    }
-}
-
 /// Deserialize [CustomStyle] from a file path.
 ///
 /// This is implemented by first deserializing a file path which in turn contains the style as TOML.