Hi,
From your description, maybe your application is not well adjusted ApplicationTheme
.
In UWP, if the theme of the app is not explicitly set, the theme of the app follows the system. You can try explicitly specifying the RequestedTheme
property in the App constructor of App.xaml.cs
.
public App()
{
this.InitializeComponent();
this.Suspending += OnSuspending;
RequestedTheme = ApplicationTheme.Dark;
}
At this time, the background color of Tooltip will turn black.
---
If you want to customize the display style of ToolTip, you can modify the default template of ToolTip
Default Style
Use
Tips
If you specify ToolTipService.ToolTip
directly to the control, you cannot apply styles. You must create a ToolTip control.
---
xaml code please see the txt file provided in the attachment
Regarding the inability to insert XML Code, check out this linked solution
Best regards.