TemplateBinding | TemplateBinding Prolyfill | Web Framework library

The problem is that the IsMouseOver trigger is not triggered when hovering over the padding or the margin of the inner control template children.

I have this control template. And I want the IsMouseOver trigger to be triggered where ever I hover over this control template. It only works when I hover over the text or over the border.

The title might not be clear but I will explain now. I have a custom control that represents a modal (inspired by SingltonSean), When I trigger a command, it shows this modal that covers the rest of the elements behind it, it somewhat acts like a popup. Now I want everything behind it to be blurred. How can I achieve that?

This is my modal custom control:

As shown in the snapshot below, the style I used in my following XAML successfully changed the default background and foreground color of menu items to blue and white respectively. But on mouse over, it does not change the background color of the MenuItem to light blue (instead, it keeps the default color of mouse over). What I may be missing here, and how can we fix the issue? I tried solutions to this and this post but still no luck.

Snapshot of the menu

To be clear: My TextBox is already focused when my SignupWindow loads. My problem here is that the text cursor/caret doesn't show up unless I click my textbox (I think this will be a UI issue).

I already focus my TextBox at the Window level:

I want the background of a button to change when the cursor hovers over the button.
I have managed to do this in a style which use the "IsMouseOver" trigger which sets the button's background to red.

I also want the button to alter it's background between two colors when the click event occurs.
I have managed to do this in the code-behind of the Window which switches between blue and green.

The problem
The trigger works as expected as long as I don't click the button.
When I click the button, the background is changed to either blue or green as expected.
If I then afterwards hover the button, the background is not set to red while hovering with the cursor.

XAML-code

I want to get a nice button with round corners in wpf with triggers, it works to get the button as i want without triggers but if i use triggers then i need to define a rectangle and thats not so round.. can this be done?

My code:

I have the following custom control in a .NET 5 WPF project:

I change my radio button's image (when clicked or not) in a ResourceDictionary like this:

I use my ResourceDictionary to style my RadioButton: