FLUT-931209-[others]: updated core latest changes

Author: Mugunthan-Ramalingam

packages/syncfusion_flutter_core/CHANGELOG.md

@@ -1,3 +1,9 @@
+## [28.1.36] - 12/24/2024
+
+**General**
+
+* The compatible version of all our Flutter widgets has been updated to Flutter SDK 3.27.0.
+
 ## Unreleased
 
 **General**

packages/syncfusion_flutter_core/lib/src/legend/legend.dart

@@ -923,7 +923,8 @@ class _SfLegendState extends State<SfLegend> {
     if (widget.itemBuilder == null) {
       _textStyle = themeData.textTheme.bodySmall!
           .copyWith(
-              color: themeData.textTheme.bodySmall!.color!.withOpacity(0.87))
+              color:
+                  themeData.textTheme.bodySmall!.color!.withValues(alpha: 0.87))
           .merge(widget.textStyle);
     }
     if (!widget.isComplex) {
@@ -1395,8 +1396,8 @@ class _LegendItemState extends State<_LegendItem>
                 details.text,
                 style: widget.textStyle!.copyWith(
                   color: widget.textStyle!.foreground == null
-                      ? widget.textStyle!.color!
-                          .withOpacity(_opacityTween.evaluate(_toggleAnimation))
+                      ? widget.textStyle!.color!.withValues(
+                          alpha: _opacityTween.evaluate(_toggleAnimation))
                       : widget.textStyle!.foreground!.color,
                 ),
               )