How to get rid of Win UI default visual states for CollectionView ?

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Hello, I am experencing some issues using CollectionView and I have not managed to find a solution except dirty workarounds. I am still learning MAUI and recently discovered about Handlers and so I suspect there might be something to be done on WinUI level for that:

As you can see, by default, there is a slight padding on selected/hovered items in a CollectionView. I tried of course overriding/removing all CollectionView styling but did not manage to do what I want.

What I want is: simply having 0 padding on the rectangle and setting its color.

Thanks a lot to anyone taking some time to help me :)