change colors in unit tests

Author: Adrian-Samoticha

test/theme/icon_theme_test.dart

@@ -81,7 +81,7 @@ void main() {
     );
 
     final theme = MacosIconTheme.of(capturedContext);
-    expect(theme.color, CupertinoColors.activeBlue.color);
+    expect(theme.color, const MacosColor(0xbe0981ff));
     expect(theme.size, 20);
   });
 }

test/theme/popup_button_theme_test.dart

@@ -96,7 +96,7 @@ void main() {
 
       final theme = MacosPopupButtonTheme.of(capturedContext);
       expect(theme.backgroundColor, const Color(0xffffffff));
-      expect(theme.highlightColor, const Color(0xff007aff));
+      expect(theme.highlightColor, const MacosColor(0xbe0981ff));
       expect(theme.popupColor, const Color(0xfff2f2f7));
     });
   });

test/theme/pulldown_button_theme_test.dart

@@ -97,7 +97,7 @@ void main() {
 
       final theme = MacosPulldownButtonTheme.of(capturedContext);
       expect(theme.backgroundColor, const Color(0xffffffff));
-      expect(theme.highlightColor, const Color(0xff007aff));
+      expect(theme.highlightColor, const MacosColor(0xbe0981ff));
       expect(theme.pulldownColor, const Color(0xfff2f2f7));
     });
   });

test/theme/search_field_theme_test.dart

@@ -80,7 +80,7 @@ void main() {
       );
 
       final theme = MacosSearchFieldTheme.of(capturedContext);
-      expect(theme.highlightColor, const Color(0xff007aff));
+      expect(theme.highlightColor, const MacosColor(0xbe0981ff));
       expect(theme.resultsBackgroundColor, const Color(0xfff2f2f7));
     });
   });