When choosing or editing a gaming or anime PFP, focus on a clear silhouette and...

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

When choosing or editing a gaming or anime PFP, focus on a clear silhouette and high contrast so it stands out even small and round. Crop close to the face to keep details readable, and skip text or busy backgrounds that get lost