When choosing or editing your gaming or anime PFP, go for a strong silhouette...

https://spark-wiki.win/index.php/How_to_Make_a_Pale_Character_Work_Without_Changing_the_Character_Colors

When choosing or editing your gaming or anime PFP, go for a strong silhouette and simple background to keep it visible as a tiny circle. Crop close to the face to highlight key details, and skip text or busy patterns