Seeking help about trying to customize some special effects.

[Promedio]

Recently I am trying to customize some special effects in Slint, for example:

• Making a menu that plays an overlay animation when expanded;
• Making a button that can be highlighted by position on approach;

These ran into difficulties. For this, I've thought of many options and still don't have a clue -

• For the first: at first, I tried adding a mask to the border-color, or overlaying an Image layer with a mask animation for it; later, I tried using colorize in Image to make the source act as alpha.
• For the second one: I tried calculating the angle of the cursor from its own center to colorize the stroke as @linear-gradient, but due to the inability to get the position of the cursor and the fact that the TouchArea doesn't allow click-throughs.

So, are these requirements impossible in Slint? If possible, I'm very curious to know what the thinking is.

Sorry, the above is from machine translation.