I have been working with Slot for a while, introduced it in our component library too.
Here are a couple of observations:
- The magenta outline feels too prominent and interferes with design and understanding of space, padding, etc. I would have preferred a subtle affordance that slot exists.
- While selecting things on canvas, earlier entire frames, components would easily get selected but with slots in those components, when I drag and select, selection happens randomly, sometimes, only slot layers are getting selected instead of entire frame or component which is not what I expect. And, it just messes it up.
- Cmd+X / Undo doesn’t work properly if I delete something from slotted component. There is not an easy way to return to previous state.