Draft styling example

style/src/button.rs

@@ -75,7 +75,7 @@ impl StyleSheet for Default {
             border_radius: 5,
             border_width: 0,
             border_color: Color::TRANSPARENT,
-            text_color: Color::BLACK,
+            text_color: Color::WHITE,
         }
     }
 }

style/src/text_input.rs

@@ -29,14 +29,14 @@ pub trait StyleSheet {
     /// Produces the style of a focused text input.
     fn focused(&self) -> Style;
 
+    fn placeholder_color(&self) -> Color;
+
+    fn value_color(&self) -> Color;
+
     /// Produces the style of an hovered text input.
     fn hovered(&self) -> Style {
         self.focused()
     }
-
-    fn placeholder_color(&self) -> Color;
-
-    fn value_color(&self) -> Color;
 }
 
 struct Default;