Release Notes:

- Fixed filled button hover background.

## Before


https://github.com/user-attachments/assets/fbc75890-d1a4-4a0c-b54e-ca2c7e63a661

## After


https://github.com/user-attachments/assets/a3595b01-e143-4cd0-8bc4-90db9ccfbf74


This appears to be a minor calculation error, not an intentional use of
this value.

If we pass `0.92` to `fade_out`, the calculated will be `alpha: 0.08`.

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Co-authored-by: Danilo Leal <daniloleal09@gmail.com>