How to change the shape of the stars within the stars component?

Hi there,

how is it possible to change the shape of the stars within the stars component?

At the beginning of my scene the stars were round and blurred out and now the stars are sharp and displayed as squares. I am not sure how I canged the shape from the stars from round and blurred out to sharp and squared. Can anyone please let me know how I can change or controll this?

Furthermore I would like to ask you if there is any possibility to change the stars to a custom shape for example a svg file?

Btw I am using react-three-drei to import the stars component.

Thank you for answers!