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

src/widget/segmented_button/model/entity.rs

@@ -3,6 +3,7 @@
 
 use std::borrow::Cow;
 
+use iced::Color;
 use slotmap::{SecondaryMap, SparseSecondaryMap};
 
 use crate::widget::IconSource;
@@ -94,6 +95,13 @@ where
         self
     }
 
+    /// Define the color for the icon.
+    #[allow(clippy::must_use_candidate, clippy::return_self_not_must_use)]
+    pub fn icon_color(self, icon: Option<Color>) -> Self {
+        self.model.icon_color_set(self.id, icon);
+        self
+    }
+
     /// Returns the ID of the item that was inserted.
     ///
     /// ```ignore