Why is the UI seems off compare to what is shown in the README?

[nadlambino]

Hi! First of all, thank you for this great package. However, I'm having a little concern with the UI. I like what's shown in the docs, but this is what I'm getting. Is there a need for configuration to achieve the same UI?

Expected

Actual (occupies the entire space)

[amanySaad]

I'm facing the same issue