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fix(app): Add null check for Application.Current #1684

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Merged
pomianowski merged 1 commit into from
Apr 17, 2026
+7 −0
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fix(app): Add null check for Application.Current #1684

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7 changes: 7 additions & 0 deletions src/Wpf.Ui/Appearance/ApplicationAccentColorManager.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -52,7 +52,7 @@
/// <summary>
/// The maximum value of the background HSV brightness after which the text on the accent will be turned dark.
/// </summary>
private const double BackgroundBrightnessThresholdValue = 80d;

Check warning on line 55 in src/Wpf.Ui/Appearance/ApplicationAccentColorManager.cs

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/// <summary>
/// Gets the SystemAccentColor.
Expand Down Expand Up @@ -258,6 +258,13 @@
Color tertiaryAccent
)
{
// If the application is shut down (Application.Current becomes null), we cannot change resources, so return immediately.
var app = Application.Current;
if (app == null)
{
return;
}

System.Diagnostics.Debug.WriteLine("INFO | SystemAccentColor: " + systemAccent, "Wpf.Ui.Accent");
System.Diagnostics.Debug.WriteLine(
"INFO | SystemAccentColorPrimary: " + primaryAccent,
Expand Down
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