STL File Modification for 3D Print, Need Eyes Edited On Toy 3D Print

I need eyes edited on a 3d print. I want them to be a solid white with background/ eye base, circles/ovals as the eye itself. I also ask that the finished file is easily exportable into bambulab studio for printing. I do not want the colors or size of the object changed. The file is too big to upload here.

Ideal skills and experience:
- Proficiency in 3D modeling software
- Prior experience editing STL files
- Understanding of 3D printing requirements
- Attention to detail
- Ability to modify and integrate features seamlessly