Document that transitions ease solid fills too

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NNTVgYqUeBTGwAHuspt3D7

Author: claude

CHANGELOG.md

@@ -22,7 +22,7 @@
 
 ### Motion
 
-- `BaseNode.transitionMs`: opacity and scale changes ease in.
+- `BaseNode.transitionMs`: opacity, draw scale and solid fill changes ease in.
 - `BaseNode.drawScale` (bindable as `drawScale`): draw a node larger or
   smaller around its center without changing layout.
 - `BaseNode.pulse` (`PulseModel`): a looping opacity and scale animation.

lib/src/api/nodes/base_node.dart

@@ -388,8 +388,9 @@ abstract class BaseNode
   @JsonKey(defaultValue: false)
   bool zoomable = false;
 
-  /// Milliseconds a change to this node's opacity or scale takes to ease in
-  /// (a pin that grows when selected, a list that dims); 0 changes at once.
+  /// Milliseconds a change to this node's opacity, draw scale or solid fill
+  /// takes to ease in (a pin that grows when selected, a row that lights up
+  /// on hover); 0 changes at once.
   @JsonKey(defaultValue: 0)
   int transitionMs = 0;