Ensure existing Margin and Effect setters are removed from
newWindowBorderStyle before adding new ones. This prevents
duplicate property setters and ensures only the latest values
are applied.
Refactored ThemeHelper.CopyStyle to assign the target style's BasedOn property directly from the original style, instead of recursively copying base style properties. This reduces complexity and ensures correct style inheritance.
Renamed the method GetFreezeSolidColorBrush to GetFrozenSolidColorBrush in ThemeHelper.cs for improved naming consistency. Updated all references in Theme.cs accordingly. No changes to functionality.
Moved the CopyStyle method from Theme to a new static ThemeHelper class for better code organization and reusability. Updated all references in Theme to use ThemeHelper.CopyStyle. Added ThemeHelper.cs and necessary using directives.
Introduce ThemeHelper.GetFreezeSolidColorBrush to centralize and reuse SolidColorBrush creation and freezing logic. Refactor Theme.cs to use this helper, improving code clarity and maintainability. Also, use Brushes.Transparent directly where appropriate.
