Customization

[LinusGeffarth]

This is a great library; it's pretty smooth. Thanks for making & sharing this 🙏

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I'd like to change a few things about the default drawer:

1. corner radius – a bit too much for my taste
2. shadow – too big & dark imho
3. starting position – can it be at the smallest position when being first shown?
4. bottom margin – for some reason, I see a very big bottom margin below my content. can that be removed? I'm showing a list there which should go all the way to the bottom

These things should either not be added by default so I can add them later manually, or I would need a way to override them / pass values for them. As for implementation, maybe sth. similar to ButtonStyle would be suitable.

This would be great! Thanks!