feat(segmented-button): manually-definable icon colors

src/widget/segmented_button/mod.rs

@@ -97,3 +97,11 @@ pub type SecondaryMap<T> = slotmap::SecondaryMap<Entity, T>;
 ///
 /// Sparse maps internally use a `HashMap`, for data that is sparsely associated.
 pub type SparseSecondaryMap<T> = slotmap::SparseSecondaryMap<Entity, T>;
+
+/// Defines the color of the icon for a segmented item.
+#[derive(Clone, Copy, Debug, Default, PartialEq)]
+enum IconColor {
+    #[default]
+    None,
+    Color(crate::iced::Color),
+}