Apply my suggestions

masonry/src/core/contexts.rs

@@ -780,10 +780,17 @@ impl_context_method!(
     }
 );
 
-// Methods on selected context types.
-// Access selected global state information.
 impl_context_method!(PaintCtx<'_>, AccessCtx<'_>, {
     /// Get DPI scaling factor.
+    ///
+    /// This is not required for most widgets, and should be used only for precise
+    /// rendering, such as rendering single pixel lines or selecting image variants.
+    /// This is currently only provided in the render stages, as these are the only passes which
+    /// are re-run when the scale factor changes.
+    ///
+    /// Note that accessibility nodes and paint results will automatically be scaled by Masonry.
+    /// This also doesn't account for the widget's current transform, which cannot currently be
+    /// accessed by widgets directly.
     pub fn get_scale_factor(&self) -> f64 {
         self.global_state.scale_factor
     }