Is there any way to animate overlayColor of the SheetController?

[bacsonvv]

Hello @gordontucker, I'm facing an issue on using the SheetController when presenting it. So I want to change the alpha of the overlayColor depends on the height of the SheetController when user drag it (ex: alpha goes from 0 to 0.5 when the SheetController goes from minHeight to maxHeight). Is there anyway to achieve this? I look for function that observes the height change but I can't find it. Looking forward to your help, a great and useful library btw.