Use THEME in ScrollBarStyle

scripts/sao-ui/src/widgets/scroll.rs

@@ -21,11 +21,11 @@ impl Default for ScrollBarStyle {
             margin: Vec2::splat(2.0),
             body_radius: 1.0,
             body_width: 3.0,
-            body_idle_color: Color(0x7f7f7fff),
-            body_hover_color: Color(0xb0b0b0ff),
-            body_selected_color: Color::WHITE,
+            body_idle_color: THEME.palette.base,
+            body_hover_color: THEME.palette.base_hover,
+            body_selected_color: THEME.palette.base_active,
             rail_width: 1.0,
-            rail_color: Color(0xa0a0a07f),
+            rail_color: THEME.palette.base,
         }
     }
 }