Proposal: easier event based styling

Greetings WASDK team
I have been using for the past several months and i liked it, i came from a WPF background and find WinUI 3 better than WPF but lacking in some areas

I tried lightweight styling and i find it amazing but i would like to request a styling feature, is it possible to style properties in an easier way?
Old styling:
```xml

```
Requested new style
```xml

```
Is it possible to do something like this?
And thanks for reading

The issue names no files, tests, or entry points. Start by reviewing the existing lightweight styling approach and the PointerOver and Pressed examples; the scope and acceptance criteria need to be defined before implementation can begin.

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