spans now good (other than direction) + refactor

src/layout/ui.rs

@@ -1,7 +1,7 @@
 use crate::{
-    primitive::{Painter, Primitives},
-    util::{IDTracker, ID},
-    HashMap, Widget, WidgetId, WidgetLike, WidgetRef,
+    HashMap, Painter, Widget, WidgetId, WidgetLike, WidgetRef,
+    primitive::Primitives,
+    util::{ID, IDTracker},
 };
 use std::{
     any::{Any, TypeId},