## WPF TextBox selected text appears a different color when the text box is inactive

### Scope
Edge

### Version Introduced
4.5

### Source Analyzer Status
Available

### Change Description
In .NET 4.5, when a WPF text box control is inactive (it doesn't have focus), the selected text inside the box will appear a different color than when the control is active.

- [ ] Quirked
- [ ] Build-time break

### Recommended Action
Previous (.NET 4.0) behavior may be restored by setting the [FrameworkCompatibilityPreferences.AreInactiveSelectionHighlightBrushKeysSupported](https://msdn.microsoft.com/en-us/library/system.windows.frameworkcompatibilitypreferences.areinactiveselectionhighlightbrushkeyssupported(v=vs.110).aspx) property to false.

### Affected APIs
* `T:System.Windows.Controls.TextBox`

### Category
Windows Presentation Foundation (WPF)

[More information](https://msdn.microsoft.com/en-us/library/hh367887(v=vs.110).aspx#wpf)

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